Slope-Intercept Form

Warm-up: Find the slope of the following:Find the slope of the

line passing through: (-1,-2)(3,4)

Slope =64

Find the slope of the line passing through: (-

1,1)(4,3)

Slope =25

Find the slope of the line passing through: A(-2,1)

B(6,7)

Slope =6

8

Slope-Intercept Form

Linear Function: A function that graphs a line

Linear Equations: Are equations that model a

Linear Function

Y-intercepty-intercept is

the y-coordinate of

the point where a line crosses

the y-axis

Where is the y-intercept of this line?

Y-intercept: (0,1)

Slope Intercept Form

Slope intercept form of an equation:

Y=mx+bSlope Y-intercept

Example: Y = mX + b

1. What are the slope and y-intercept of: y=3x-5

Slope: 3 Y-intercept: -52. Write an equation of a line with a

slope of ¼ and y-intercept at 7

Y = mX + b Y = ¼X + 7

ClassworkFind the slope and y-intercept of the following linear

equations

Write the equation of the line given the slope and the y-int.