Express your self
unknown value in a problem
variable
A set of ordered pairs is called ___________
relation
A set of 2 or more equations containing the same variables
__ _________ _ ________
A system of equations
Define matrix
Rectangular ARRAY of numbers
2 and -2 are called __________
Opposites or additive inverse
PEMDAS is an acronym for ______ __ __________
Order of operations
The x-coordinates of any function are called ________
Domain
The method in which you add/subtract the equations to get rid of one of the variables is called ______________
2x + 3y = 10
5x - 3y = 11
7x = 21
elimination
Define a column matrix
A matrix that has 1 column
Numbers that can be represented as a ratio a/b
Rational numbers
*** DOUBLE ***
A mathematical sentence that expresses the relationship between quantities
Formula
This is how we check if a relation is a function
Vertical lines test
If the lines never cross then the system has this many solutions
NONE
This matrix is called
[ 1 0 0 ]
[0 1 0 ]
[0 0 1 ]
Identity
Name the property
a = a
Reflexive
{...,-3,-2,-1,0,1,2,3...} are called
Integers
This function has a slope of zero
Constant
*** TRIPLE **
If the lines intersect then the system is classified as _______ __ _______
Consistent and independent
Dimensions of a matrix m x n , m is the number of _________
rows
*** DOUBLE ***
The slopes of perpendicular lines are this
Negative reciprocals
This property is called a(b+c)= ab + ac
Distributive
This function looks like a letter "V"
Absolute value
This is called
3x + 2y > 5
7x -5y < 10
A system of inequalities
A matrix which contains the coordinates of the pre-image is called
A vertex matrix
A mathematical expression which contains an equal sign
Equation