Shared Flashcard Set

Details

Pre-Algebra
Vocabulary Review
43
Mathematics
7th Grade
05/02/2009

Additional Mathematics Flashcards

 


 

Cards

Term
algebraic expression
Definition
An expression that contains sums and/or products of variables and numbers.
Term
conjecture
Definition
an educated guess
Term
inductive reasoning
Definition
making a conjure based on a pattern of examples or past events
Term
numerical expression
Definition
a expressing such as 1+2*5
Term
evaluate
Definition
to find an answer to an expression
Term
order of operations
Definition
first simplify the expressions inside group symbols, then do all * or / from left to right, and then doing all + and - from left to right
Term
variable
Definition
a placeholder for any value
Term
substitution property of equality
Definition
replacing a variable with a number
Term
defining a variable
Definition
choosing a variable and a quantity for the variable to represent
Term
properties
Definition
statements that are true for any numbers
Term
commutative property of addition
Definition
represented by 8+3 or 3+8
Term
commutative property of multiplacation
Definition
3*8 or 8*3 represent this property
Term
assosiative property
Definition
the way in which numbers are grouped when added or multiplied does not change the sum or the product
Term
counterexample
Definition
an example that shows a conjecture is not true
Term
simplify
Definition
to write algebraic expressions in a simpler form
Term
deductive reasoning
Definition
the process of using facts, properties, or rules to justify reasoning or reach valid conclusions
Term
equation
Definition
a mathematical sentence taht contains an equals sign
Term
open sentence
Definition
an equation that contains a variable
Term
solution
Definition
a value for the variable that makes an equation true
Term
solving the equation
Definition
the process of finding a solution
Term
coordinate system
Definition
a system that is used to locate points
Term
y-axis
Definition
the vertical number line
Term
x-axis
Definition
the horizontalnumber line
Term
origin
Definition
the point where the x and y axis intersect (0,0)
Term
coordinate plane
Definition
the second name for the coordinate system
Term
ordered pair
Definition
used to locate any points on a coordinate plane
Term
x-coordinate
Definition
the first number in an ordered pair
Term
y-coordinate
Definition
the second number in a ordered pair
Term
graph
Definition
to draw a dot at the point that corresponds to the ordered pair
Term
relation
Definition
a set of ordered pairs
Term
domain
Definition
the set or x-coordinates
Term
range
Definition
the set of y-coordinates
Term
scatter plot
Definition
a graph that shows the relationship between two sets of data
Term
negative number
Definition
a number less than zero
Term
integers
Definition
whole numbers and their opposites
Term
coordinate
Definition
the number that corresponds to a point
Term
inequality
Definition
a mathematical sentence containing a less than or greater than sign
Term
absolute value
Definition
two numbers on opposite sides of zero, but are the same distance away
Term
opposites
Definition
two numbers with the same absolute value but different signs
Term
additive inverses
Definition
an integer and its opposite
Term
quadrants
Definition
four regions on the coordinate plane that are separated by the x and y axis
Term
average
Definition
the same as the mean of a set of data
Term
mean
Definition
the average of a set of data
Supporting users have an ad free experience!