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–#5 Finding Slope and Y-intercept Given Slope Intercept Form

Warm UpFind the slope of the line that passes

through each pair of points.

1.(-2,-2) (-4,1)

2.(0,0) (4,-2)

3.(3,-6) (2,-6)

4.(4,2) (4,3)

3

2

1

2

0

Undefined

Types of Slope

PositiveNegative

Zero

Undefinedor

No Slope

Slope-intercept form:y = mx + b.

slope y-intercept

Find the slope andy-intercept of the

following equations.

y = 3x + ½ slope= 3

y-intercept = ½

Find the slope andy-intercept of the

following equations.

y = -2x + 5 slope= -2

y-intercept = 5

Find the slope andy-intercept of the

following equations.

y = 1/2x +9 slope= 1/2

y-intercept = 9

Find the slope andy-intercept of the

following equations.

y = 3x -4 slope= 3

y-intercept = -4

Find the slope andy-intercept of the

following equations.

y = -x + 2 slope= -1

y-intercept = 2

y = 4x

y = 3

x = 4

y = x