Linear functionsGraphing a line

The coordinate plane

Using a table

X

Y

-1 1

0 3

1 5

2 7

Calculator

Equation must be solved for y=

Given: 2x – 3y = 12 -3y = -2x +12 y = 2/3 x -4

Slope-intercept form

Y = m x + b Where m = slope = rise run

The y-intercept is b.

Graphing by hand

Y=2/3x -41) Plot the y intercept: (0, -4)

2) Starting from THAT intercept , rise 2 and then go right 3. Plot this new point.

3) Repeat step 2.4) Using a ruler, draw a line, with

arrows at each end!