# Linear Equations/Functions Flashcards

1
Q

graphing method

A

solution revealed as the point of intersection of the two lines

2
Q

substitution

A

isolate a variable, substitute that into the other equation, solve for the new variable

3
Q

elimination method

A

add two equations together to eliminate either the x’s or y’s

4
Q

relation

A

any set of ordered pairs

5
Q

domain

A

the set if all input values of a relation

6
Q

range

A

the set of all output values in a relation

7
Q

ordered pair

A

composed if two numbers that represent a location on a coordinate plane

8
Q

coordinate plane

A

composed of 2 axis which divide the plane into four quadrants

9
Q

coordinate plane aka

A

cartesian plane

10
Q

function

A

special relation in which each input value is matched with a distinct (unique) output value

11
Q

independent variable

A

input value

12
Q

dependent variable

A

output value

13
Q

function notation

A

f(x) or f of x

14
Q

linear function

A

a function in which all of the variables are raised to the first power

15
Q

criteria (3) of a linear function

A

1) no variable products/ everything to the power of one
2) no variables in denominator
3) graph is a straight line

16
Q

vertical line test

A

a tool used to determine if a relation is a function

17
Q

elimination method aka

A

linear combination method

18
Q

definition of a system of equations

A

two or more equations in the same variables