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ORSA MAC
Math Primer
219
Mathematics
Not Applicable
07/01/2016

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Term
Integer
Definition
whole number
Term
T/F A natural number is and integer.
Definition
True. It may be either positive or negative.
Term
common fraction
Definition
the ratio of two integers
Term
T/F A common factor is one integer divided by another.
Definition
False. A common fraction is one integer divided by another. The fraction can be either positive or negative.
Term
rational number
Definition
any positive or negative integer, or fraction made up
of integers
Term
T/F Factorials are those which can be represented by the ratio of two integers
Definition
False. Rational Numbers.
Term
irrational number
Definition
positive and negative numbers which cannot be represented as
the ratio of two integers, e.g. 21/2 , 71/3, π (since π is not exactly 22/7).
Term
The real number system
Definition
is that system of numbers which includes all
positive and negative rational and irrational numbers and the number 0.
Term
-infinity...-4, -3, -2, -1,0,1,2,3,4...infinity+
Definition
graphical representation of the real number system, a series of numbers that runs without end
Term
explicit number
Definition
symbols which represent specific numbers, e.g. 1,6,-3/5.
Term
literal numbers
Definition
letters which represent or stand for explicit numbers
Term
also known as a general number
Definition
literal number
Term
variable
Definition
a symbol which is used to represent different numbers throughout a particular discussion
Term
T/F letters from the latter portion of the alphabet are utilized as variables
Definition
True, x,y,z
Term
T/F variables are explicit numbers that may have several values.
Definition
False. Variables are literal numbers that may have several values
Term
constant
Definition
symbol which represents the same number during a discussion
Term
T/F a constant never changes its value
Definition
False. An absolute constant never changes its value and it usually is an explicit number such as 2, 1/3, etc.
Term
arbitrary constant
Definition
will have the same value throughout any one discussion or exercise, but may be
assigned different values in different exercises, and is normally represented by a literal number
Term
The first few letters of the alphabet are conventionally used for these.
Definition
arbitrary constants
Term
absolute value
Definition
The length of a line on a number scale which represents a
certain number, without regard to the direction (negative or positive) of the number from zero
Term
|x|
Definition
means the absolute value of x and equals x
Term
|3|
Definition
means the absolute value of 3 and equals 3.
Term
|-4|
Definition
means the absolute value of -4 and equals 4.
Term
-|4|
Definition
means the absolute value of 4 and equals –4.
Term
The algebraic value of a number is
Definition
equal to its distance and direction, either plus of minus, from a zero point
origin.
Term
algebraic expression
Definition
combination of explicit and literal numbers
linked by the four symbols of fundamental mathematical operations; which are addition, subtraction,
multiplication, and division
Term
A + B –5D +6/F is?
Definition
an algebraic experssion
Term
algebraic term
Definition
a distinct part of an algebraic expression which is separated from the rest of the expression by a plus or a minus sign, which is itself a part of the term
Term
A + B –5D +6/F which are algebraic terms?
Definition
A(or +A), +B, -5D, and +6/F
Term
monomial
Definition
algebraic expression with only one term in it.
Term
binomial
Definition
algebraic expression with two terms in it.
Term
trinomial
Definition
an algebraic expression with three terms in it.
Term
polynomial
Definition
any algebraic expression containing more than one term,
Term
What is the generic definition of a polynomial?
Definition
an expression which is composed of a term or terms that contain a literal number raised to a positive, integral number or zero power
Term
T/F Expressions with terms containing literal numbers raised to a negative or a fractional power are generally excluded from the term polynomial.
Definition
True
Term
3x2 + 5x + 5 is defined by?
Definition
restricted definition of a polynomial
Term
algebraic factor
Definition
part of an algebraic term which is multiplied by another part or parts of the same term
Term
T/F an algebraic factor can be made up of more than one number.
Definition
False. It can be made up of only one number which cannot be further broken down into integral, rational
numbers other than a combination of itself and the number 1 or its negative and the number –1
Term
prime factor
Definition
made up of only one number which cannot be further broken down into integral, rational
numbers other than a combination of itself and the number 1 or its negative and the number –1
Term
T/F an algebraic factor can be made up of several factors multiplied together
Definition
True
Term
7bTV, name all of the factors
Definition
7 (a prime factor), b, T, V, 7b, 7bT, bT, bTV, 7T, 7TV, TV
Term
coefficient of a term
Definition
factor by which the other factors of a term are multiplied
Term
numerical coefficient
Definition
The explicit number part of the factor
Term
T/F The factor normally considered as the coefficient is the factor listed first in the term
Definition
True
Term
commutative law
Definition
the sum of two numbers is the same regardless of the order in which we add the numbers. That is, a + b is exactly the same as b + a.
Term
a + b is exactly the same as b + a
Definition
commutative law
Term
associative law
Definition
sum of three or more numbers is the same regardless of how they are grouped. That is (a + b) + c is the same as a + (b + c) or c + a + b
Term
(a + b) + c is the same as a + (b + c) or c + a + b
Definition
associative law
Term
commutative law
Definition
the product of two numbers is the same regardless of the order in which they are multiplied. That is, a times b is exactly the same as b times a.
Term
a times b is exactly the same as b times a
Definition
commutative law for multiplication
Term
associative law for multiplication
Definition
the product of three or more numbers is the same regardless of the order of multiplying the numbers together
Term
distributive law
Definition
the product of a number and a sum of numbers is the
same as the sum of the products obtained by multiplying each of the other numbers by the first number.
Term
multiplicand
Definition
the number which is multiplied by another number is known as the
Term
number that we multiply by is called
Definition
the multiplier.
Term
the result of multiplying the multiplicand by the multiplier
Definition
the product
Term
the number which is divided into another number
Definition
divisor
Term
the number divided
Definition
the dividend
Term
_
_
_
Definition
is identically equal to
Term
n!
Definition
n factorial or factorial n
Term
sum of the variables of which asubn is the representative
Definition
Sigma a sub n
Term
a1/2
Definition
square root of a
Term
a1/3
Definition
a to the 1/3 power
Term
a1/5
Definition
a to the 1/5 power
Term
The student must constantly remind himself that the a’s, b’s, x’s and y’s are literal numbers representing
Definition
real numbers
Term
we say that any number divided by 0 is
Definition
undefined
Term
b*b*b = b3, what is b?
Definition
b is the base of the exponential expression
Term
b*b*b = b3, what is 3?
Definition
3 is the power to which the base is raised
Term
If a letter or number appears without an exponent,
Definition
then the exponent is taken to be 1
Term
3x + 2x =
Definition
= 5x
Term
4xy + 3xy =
Definition
7xy
Term
10 xyz –2xyz =
Definition
8xyz
Term
8abc –7abc =
Definition
abc
Term
When we multiply x by x we arrive at the answer
Definition
x2
Term
x*x*x =
Definition
x3
Term
x2 * x3 =
Definition
x5
Term
x12 * x6 =
Definition
x18
Term
T/F When we multiply like terms, we simply add the exponents of each of the terms and place it as the exponent of the original term
Definition
True. xa * xb = xa+b
Term
what happens when our terms to be multiplied contain numerical coefficients
Definition
multiplying the numerical coefficients together and going
through the same drill that we went through above with the letters and their exponents Thus: 6a2 * 3a3 = 18a5
Term
a2 * a6
Definition
a8
Term
x2 * x3 * (-x4)
Definition
–x9
Term
15x * 10x5
Definition
150x6
Term
a2 * b10 *c3
Definition
a2b10c3
Term
3x2 *4y2
Definition
12x2y2
Term
4x2 * 2y3 * (-10z5)
Definition
–80x2y3z5
Term
2a2b3c4 * (-3ab-2c2)
Definition
–6a3bc6
Term
(-x2) * 2x5 * 6x3 * (-x)
Definition
–12x11
Term
5x2y3z4 * (-3a)
Definition
–15ax2y3z4
Term
3xa * 4xb * (-2x)
Definition
–24x1+a+b
Term
13a + 4b –a –2b =
Definition
12a + 2b
Term
20x – 10x + 20y – 15y – 5x – 5y=
Definition
5x
Term
–5xy + 10 – 5yx –5 + 15xy =
Definition
5xy + 5
Term
10 – 3a2b3c – 8 + 4b3a2c =
Definition
a2b3c + 2
Term
10a – (5a + 2b) + 3b – (2a-b) =
Definition
3a + 2b
Term
10a2 + b2 – 3b2 –5a2=
Definition
5a2 – 2b2
Term
a – b + c – (3c – 2b – 2c)=
Definition
a + b
Term
3xyz + 2zyx – 4xyz=
Definition
xyz
Term
10a3b2 + 5b2a3 – a3=
Definition
15a3b2 – a3
Term
3(xy)2 + x2y2=
Definition
4x2y2
Term
x3x * x2y=
Definition
x3x + 2y
Term
10xyz – 12 + 2yzx=
Definition
12xyz - 12
Term
(xm)n
Definition
xmn
Term
(a6)2
Definition
a12
Term
(3x2)3
Definition
27x6
Term
{x|x<5}
Definition
the set of all x such that x is less than 5
Term
Left Whisker
Definition
smallest value
Term
Right Whisker
Definition
largest value on box and whisker plot
Term
Left side of box on box and whisker plot
Definition
1st quartile or 25th percentile
Term
Right side of box and whiskers plot
Definition
3rd quartile or 75% percentile
Term
what is on the horizontal axis of a box and whiskers plot?
Definition
the variable of interest
Term
what does a box and whiskers chart provide
Definition
a distribution of a data set based on the median and data quartiles
Term
Rank = k(n-1)+ 1
Definition
PERCENTILE.INC - k is in the range of 0 to 1 with 0 and 1 included.
Term
what are the two percentile functions in excel?
Definition
PERCENTILE.EXC and PERCENTILE.INC
Term
How do you interpret a result of 2.75 on the k = 0.25 percentile?
Definition
The second number in the ordered list of data represents the 25% percentile, and it's closer to 3 than 2.
Term
What is a data prerequisite for calculating a percentile?
Definition
the data must be in order from lowest to highest, ascending.
Term
if a data set is shown to have more than 3 modes what is generally said about that data set?
Definition
it has no mode.
Term
what is a simple definition of the arithmetic mean?
Definition
the balance point in a distribution where the sum of deviations is equal to 0
Term
T/F In the context of regression analysis, when the sum of the residuals is greater than zero, the data set is nonlinear.
Definition
False. The sum of the residuals is always zero, whether the data set is linear or nonlinear.
Term
T/F A random pattern of residuals supports a linear model.
Definition
True
Term
T/F A random pattern of residuals supports a non-linear model.
Definition
False. A random pattern of residuals supports a linear model
Term
e = y - ŷ
Definition
Residual = Observed value - Predicted value
Term
T/F Each data point has one residual.
Definition
True
Term
A graph that shows the residuals on the vertical axis and the independent variable on the horizontal axis
Definition
Residual Plot
Term
What is plotted on the horizontal axis of a residual plot?
Definition
the independent variable, y
Term
What is plotted on the vertical axis of a residual plot?
Definition
the residual, e
Term
How do you assess the appropriateness of linear regression for your data?
Definition
Because a linear regression model is not always appropriate for the data, you should assess the appropriateness of the model by defining residuals and examining residual plots.
Term
Non-random, U-shaped
Definition
shape of a residual plot for data that is not appropriate for linear regression
Term
Non-random, inverted U
Definition
shape of a residual plot for data that is not suitable for linear regression.
Term
[image]
Definition
the residual is the error in prediction
Term
Is linear regression appropriate?
Definition
Check the residual plots
Term
In mathematics, an ____ _____ is a function of one variable which is the composition of a finite number of arithmetic operations (+ – × ÷), exponentials, logarithms, constants, and solutions of algebraic equations (a generalization of nth roots).
Definition
elementary function
Term
T/F The elementary functions include the trigonometric and hyperbolic functions and their inverses, as they are not expressible with complex exponentials and logarithms.
Definition
False, they are expressible with complex exponentials and logarithms
Term
It follows directly from the definition for and elementary function that the set of elementary functions is closed under arithmetic operations and composition. It is also closed under differentiation. It is not closed under _____ and _______ _______.
Definition
limits and infinite sums
Term
Elementary functions are ______ at all but a finite number of points.
Definition
analytic
Term
T/F Some elementary functions, such as roots, logarithms, or inverse trigonometric functions, are not entire functions and may be multivalued.
Definition
True, in physics, multivalued functions play an increasingly important role. They form the mathematical basis for Dirac's magnetic monopoles, for the theory of defects in crystals and the resulting plasticity of materials, for vortices in superfluids and superconductors, and for phase transitions in these systems, for instance melting and quark confinement. They are the origin of gauge field structures in many branches of physics.
Term
What are two special types of transcendental extensions within the field of rational functions?
Definition
the logarithm and the exponential
Term
Elements that are not algebraic are called _______.
Definition
transcendental
Term
Wikis list of two types of elementary functions
Definition
Algebraic Functions and Elementary Transcendental Functions
Term
Functions that can be expressed as the solution of a polynomial equation with integer coefficients.
Definition
Algebraic Functions
Term
These types of elementary functions are not algebraic.
Definition
Elementary Transcendental Functions
Term
Wikis list of three types of algebraic functions.
Definition
Polynomials, Rational Functions, Nth root
Term
_______ can be generated by addition, multiplication, and exponentiation alone.
Definition
polynomials
Term
A polynomial of degree zero.
Definition
constant function
Term
T/F the graph of a horizontal straight line is a polynomial of degree zero.
Definition
True and it is called a constant function.
Term
T/F Zero degree polynomials are straight lines.
Definition
False, zero degree polynomials are HORIZONTAL straight lines, first degree polynomials are graphed as a straight line.
Term
A second degree polynomial is graphed as a _______.
Definition
parabola
Term
What is another name for a second degree polynomial?
Definition
A quadratic function
Term
Cubic Function
Definition
a third degree polynomial
Term
What do you call a 4th degree polynomial function?
Definition
a quartic function
Term
What do you call a 5th degree polynomial function?
Definition
a quintic function
Term
What do you call a 6th degree polynomial function?
Definition
a sextic function
Term
A ratio of two polynomials.
Definition
a rational function
Term
Yields a number whose square is the given one x^1/2.
Definition
square root
Term
Yields a number whose cube is the given one x^1/3
Definition
cube root
Term
[image]
Definition
[image]
Term
[image]
Definition
The Nth root of a number x, is a number r which, when raised to the power n yields x.
r^{n}=x, where n = 1 or a first degree root.
Term
A real number has n ____ of degree ___.
Definition
roots, n
Term
A complex number has ____ roots of degree n.
Definition
n
Term
T/F The roots of zero are distinct.
Definition
False, the roots of 0 are not distinct, they all equal 0.
Term
The n nth roots of any real or complex number (except 0) are all ______.
Definition
distinct
Term
Nth Root Rule 1 of 4 - If n is even and x is real and positive, then...
Definition
one of its nth roots is positive, one is negative, and the rest are either non-existent or complex, but not real.
Term
Nth Root Rule 2 of 4 - If n is even and x is real and negative, then...
Definition
none of the nth roots is real
Term
Nth Root Rule 3 of 4 - If n is odd and x is real, then...
Definition
one nth root is real and has the same sign as x, while other roots are not real
Term
Nth Root Rule 4 of 4 - If x is not real, then....
Definition
none of its nth roots is real
Term
T/F The radical symbol denotes a function.
Definition
True
Term
In calculus, _____ are treated as special cases of exponentiations, where the exponent is a ______.
Definition
roots, fraction
Term
Roots are particularly important in the theory of ____ ____.
Definition
infinite series
Term
The _____ ______ determines the radius of convergence of a power series.
Definition
root test
Term
Every positive real number x has a single positive nth root called the _______ ____ ______.
Definition
principal nth root
Term
T/F The nth roots of almost all numbers are irrational.
Definition
True,
Term
[image]
Definition
Shows the four 4th roots of -1, none of which is real. If it's not on the line, it's not an integer and therefore is not real (?)
Term
[image]
Definition
The three 3rd roots of -1, one of which is a negative real number.
Term
[image]
Definition
The graph of y equal to plus or minus the square root of x.
Term
[image]
Definition
The graph of y is equal to the cube root of x.
Term
[image]
Definition
The square roots of i.

The two square roots of a complex number are always negatives of each other. For example, the square roots of -4 are 2i and -2i, and the square roots of i are ...
1 over the square root of 2*(one +i) AND negative 1 over the square root of 2*(one + i).

If we express a complex number in a polar form, then the square root can be obtained by taking the square root of the radius (r) and halving the angle.
Term
[image]
Definition
Term
[image]
Definition
[image]
Term
In dimensional analysis, transcendental functions are notable because they make sense only when their argument is _______.
Definition
dimensionless
Term
T/F applying a non-algebraic operation to a dimension creates a meaningless results.
Definition
True
Term
Raises a fixed number to a variable power.
Definition
Exponential Function
Term
Formally similar to trigonometric functions
Definition
Hyperbolic Functions
Term
The inverses of exponential functions.
Definition
Logarithms
Term
Raises a variable number to a fixed power.
Definition
Power Function
Term
Also known as Allometric Functions
Definition
Power Functions
Term
Describe periodic phenomena.
Definition
Periodic Functions
Term
What are the 5 types of transcendental functions?
Definition
exponential, hyperbolic, logarithms, power functions, and periodic functions
Term
[image]
Definition
In mathematics, an exponential function in this form in which the input variable x occurs as an exponent.
Term
[image]
Definition
The natural exponential function of y equals the letter e to the power of x
Term
[image]
Definition
A function of the form f(x) = b to the power of x + c is also considered an exponential function
Term
What is the representation of an exponential function?
Definition
the letter e raised to the power of x
Term
What is the inverse of the exponential function?
Definition
the natural log of x
Term
What is the derivative of the exponential function?
Definition
the derivative of the exponential function IS itself or the letter e raised to the power of x
Term
What is the indefinite integral of the exponential function?
Definition
the letter e to the power of x plus the constant, C
Term
What are examples of common applications for the exponential function?
Definition
compound interest, Euler's Identity, Euler's Formula, half-lives, exponential growth, exponential decay
Term
The exponential function arises whenever a quantity grows or decays at a rate _______ to its _______ _________.
Definition
proportional, current value
Term
What is the exponentiation identity?
Definition
exp(x + y) = exp(x) * exp(y)
Term
The exponential function extends to an _____ ______ on the _____ _____.
Definition
entire function, complex plane
Term
Euler's formula relates its values at purely ______ ______ to trigonometric functions.
Definition
imaginary arguments
Term
T/F The exponential function has analogues for which the argument is a matrix.
Definition
True
Term
The importance of the exponential function in mathematics and the sciences stems mainly from properties of its ________.
Definition
derivative
Term
What is the derivative of the letter e to the x power?
Definition
d over dx time the letter e to the power of x.
Term
[image]
Definition
In mathematics, a constant function is a function whose (output) value is the same for every input value.[1][2][3] For example, the function y(x)=4 is a constant function because the value of y(x) is 4 regardless of the input value x (see image).
Term
[image]
Definition
In calculus, analytic geometry and related areas, a linear function is a polynomial of degree one or less, including the zero polynomial (the latter not being considered to have degree zero).

When the function is of only one variable, it is of the form f(x)=ax+b, where a and b are constants, often real numbers. The graph of such a function of one variable is a nonvertical line. a is frequently referred to as the slope of the line, and b as the intercept.
Term
[image]
Definition
In linear algebra, a linear function is a map f between two vector spaces that preserves vector addition and scalar multiplication:

f(x + y)= f(x) + f(y)

f(a) = af(x).
Here a denotes a constant belonging to some field K of scalars (for example, the real numbers) and x and y are elements of a vector space, which might be K itself.
Term
N = x(10 raised to the power of c), where 1<= x <10 and c is an integer.
Definition
scientific notation
Term
T/F scientific notation uses logarithms to the base 10 called complex logarithms.
Definition
False scientific notation uses logarithms to the based 10 called common logarithms.
Term
square and cube root of 100 =
Definition
10.000 and 4.642
Term
square and cube root of 110 equals
Definition
10.488 and 4.791
Term
square and cube root of 196 equals
Definition
14.000 and 5.809
Term
square and cube root of 169 equals
Definition
13.000 and 5.529
Term
square and cube root of 84 equals
Definition
9.165 and 4.380
Term
square and cube root of 64 equals
Definition
8.000 and 4.000
Term
square and cube root of 16 equals
Definition
4.000 and 2.520
Term
square and cube root of 30 equals
Definition
5.477 and 3.107
Term
square and cube root of 50 equals
Definition
7.071 and 3.684
Term
square and cube root of 60 equals
Definition
7.746 and 3.915
Term
square and cube root of 70 equals
Definition
8.367 and 4.121
Term
square and cube root of 80 equals
Definition
8.944 and 4.309
Term
square and cube root of 90 equals
Definition
9.487 and 4.481
Term
square and cube root of 190 equals
Definition
13.784 and 5.749
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