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What is a natural number? |
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A natural number is the numbers 1, 2, 3, etc... it does not contain 0. |
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Give an example of a natural number? |
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Example: 1,2,3,4,5,6,7,8,9,etc |
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What is not a natural number? |
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A whole number is any number that is 0,1,2,3,4,5,6,etc. |
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What is not a whole number? |
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Is any positive number, negative number, and 0...
No fractions.... |
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What is a rational number? |
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is like an integer but it contains fractions that are repeating or that have a pattern or they stop. |
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Examples of rational numbers... |
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Definition
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What is not a rational number? |
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Definition
.93759624759
pie
square root of 2 |
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What is an irrational number? |
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Definition
An irrational number are numbers that do not repeat or written as a fraction. |
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Examples of irrational numbers? |
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Definition
pie
.2875943875
square root of 3 |
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What is the difference between inequalities and interval notations? |
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Definition
Write each inequality using interval notation.
a. x>4 ->inequality b. -1<x<10
(4, infinity) (-1, 10)--->interval notation
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Should the interval follow the number line?
True/False |
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Pie is irrational because it doesnt repeat or ever stop.
True/False |
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We use [ and ] with < and >..
True/False |
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Definition
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We use < and > but with the horizontal line under it with??? |
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Definition
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The filled in bold dot on the inequality line means? |
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Definition
That the interval notation has a less than or greater than and equal to sign |
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A open white dot means it is just < and >..
True/False |
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Definition
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-2<x<5 written in interval notation is... |
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Definition
x is greater than -2 and less than 5 |
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It means the opposite of "a" |
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Name three of the common properties... |
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Definition
Communtative
Associative
Distributive
Properties |
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What is commutative property? |
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Definition
Communtative property is when you change the order and it's okay. |
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Give an example of communtative property... |
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Definition
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Give an example of associative property and what is it? |
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Definition
Associative property is when you move the ( ) and it's okay...
(ab)c=a(bc) |
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Distributive property is when you correctly distribute and if they equal out than it's okay...
Example- 2(x+y)=2x+2y
True/False |
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If a= -5
then what is -a=??? |
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When you susitute it never gets parenthesis?
True/False |
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x2= (-3)2=9
but
-(x)2=-(-3)2=-9 |
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0 divided by anything is called? |
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Definition
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Anything to the 0 is 1
True/False |
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Definition
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When multiplying fractions Dont multiply across
True/False |
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Definition
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What is a trick to remember when dividing fractions? |
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Definition
Keep it
Change it
Flip it |
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When adding or subtracting fractions you must find a common numerator
True/False |
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Definition
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Definition
-12a2b-2
which becomes
-12a2/b2 |
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The odd root of a negative will be a negative?
True/False |
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Definition
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The even root of a negative will be "no real" number?
True/False |
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Definition
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3 on the outside of square root of x2 |
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What does profit equal to? |
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Will you ever have a negative exponent in your answer? If not asked by directions to?
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Definition
No you will not because you need to cross it over the magic division bar |
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If you are dividing and you have the same base than you will _________ the exponents? |
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Definition
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If same base, you multiply the coeffients and _____ the exponents? |
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Anything to the zero power is? |
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What is the difference of square? |
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Definition
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Definition
is called the perfect square trinomial |
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(x-2)(2x)+(x-2)(3)
What is the common factor? |
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Definition
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Definition
rational
whole number
integer |
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Definition
rational
integer
natural
numbers |
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2x+12x-9 is a polynomial?
true/false? |
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Definition
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3x^2+6x-9
What is the constant? |
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Definition
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Name one easy way to find a domain? |
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Definition
All polynomials are all real numbers |
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Name another way to find domains? |
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Definition
if it has a denominator with an X then the bottom can not equal 0 |
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What unit are we in?
When is the test? |
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Definition
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Explain outside and under? |
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Definition
What the thing asked for to factor out put it infront of the ( ) and also put it under each part of the problem |
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