Slope and Coordinate Plane

coordinate plane

a grid formed by a horizontal line called the x-axis and the vertical line called the y-axis

x axis

The horizontal number line on a coordinate plane

y axis

the vertical number line in a coordinate plane

x coordinate

the first number in an ordered pair

y coordinate

the second number in an ordered pair

ordered pair

Two numbers that can be used to locate a point on a coordinate plane

origin

(0,0)

to plot

To mark a point on a coordinate grid using an X and a Y coordinate.

(-1, 2)

x = -1, y = 2

(3, 3)

x = 3, y = 3

slope

Rise over run

positive slope

line that goes up from left to right

negative slope

a line that goes down from left to right

rise

the change in the y-values of two points on a line

run

the change in the x-values of two points on a line

quadrant

one of four sections of a coordinate plane

slope-intercept form

y = mx + b

y intercept

where the line crosses the y axis

m

slope

slope formula

m = (y2 - y1) / (x2 - x1).