623 yx 142 yx

182 yx 9 yx

Can you graph the line?

-slope of ¾ and passes through the point (-2,5)

x

y

Can you graph the line?

-slope of -2 and a y-intercept of 5.

x

y

Section 8.6

Slope-Intercept Form

1228 yx7 yx2025 yx

632 yx 4 yx

1. Find x-intercept and y-intercept.

2. Graph the line

3. Find the slope of the line.

4. Solve the equation for y.

Graph the Equation

x-int =

y-int =

Slope =

x

y

2025 yx

Graph the Equation

x-int =

y-int =

Slope =

x

y

7 yx

Graph the Equation

x-int =

y-int =

Slope =

x

y

1228 yx

Graph the Equation

x-int =

y-int =

Slope =

x

y

632 yx

Graph the Equation

x-int =

y-int =

Slope =

x

y

4 yx

Slope-Intercept Form

m = slope

b = y-intercept

y = mx + b

Graph the Equation

74 xy

m =

b =

x

y

Find the slope and y-intercept, then graph.

1054 yx

x

y

123 yx

x

y

Find the slope and y-intercept, then graph.

15 yx

x

y

Find the slope and y-intercept, then graph.

Baking A school group making cookies for a bake sale spends $75 on ingredients and then sells the cookies for $5 a dozen. The amount earned y can be represented by the equation , where x equals the number of dozens sold.

Graph the equation.

x

y

Homework

P 400-401 13-31 odds; 32 – 35 all