##### Math Terms

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created 4 years ago by Briana
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updated 4 years ago by Briana
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math 8
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1

constant of proportionality

the constant ratio in a proportional linear relationship

2

constant of variation

a constant ratio in a direct variation

3

constant rate of change

the rate of change between any two points in a linear relationship is the same or constant

4

direct variation

a relationship between two variable quantities with a constant ratio

5

linear relationships

a relationship that has a straight line graph

6

point - slope form

an equation of the form y - y1 = m(x-x1), where m is the slope and (x1,y1) is a given point on a non-vertical line

7

rise

the verticle change between any two points on line

8

run

the horizontal change between any two points on a line

9

slope

the rate of change between any two points on a line. The ratio of the rise, or vertical change, to the run, or horizontal change

10

slope - intercept form

an equation written in the form y = mx + b, where m is the slope and b is the y - intercept

11

standard form

an equation written in the form Ax + By = C

12

substitution

an algebraic model that can be used to find the exact solution of a system of equations

13

systems of equations

a set of two or more equations with the same variables

14

x - intercept

the x - coordinate of the point where the line crosses the x - axis

15

y - intercept

the vertical number line that helps to form the coordinate plane