x- and y- intercepts

x – intercept:

y – intercept:

(2, 0)

(0, -3)

Slope

2 1

2 1

y ym

x x

0 32 0

m

32

m

(2, 0) (0, -3)

3

2

4.What is the slope of the line y = 223x – 10 ?

What is the y-intercept of the line y = 223x – 10 ?

What is the slope of the line y = x + 15?67

What is the y-intercept of the line y = x + 15?67

What is the slope of the line y = mx + b?

What is the y-intercept of the line y = mx + b?

223m

(0, 10)

67

m

(0,15)

m m

(0, )b

y = 2x + 1

Rise

Run

2

1

slope

y-intercept

1

2

run

rise

b = (0, 1)

m = 2

y = 2x + 1

y = -3x + 2

Rise

Run

-3

1

slope

y-intercept

1

3

run

rise

b = (0, 2)

m = -3

y = -3x + 2

Rise

Run

2

3

slope:

y-intercept:

3

2

run

rise

b = (0, -1)

13

2 xy

3

2m

3 2 3y x 3 3 3

Rise

Run

-1

2

slope:

y-intercept

2

1

run

rise

b = (0, 3)

132

y x

2

1m

2 6y x x x

2 6y x 2 2 2

Rise

Run

-1

3

slope:

y-intercept

rise 1run 3

b = (0, 1)

11

3 y x

1m

3

3 3 0 x y3 3 3 3 x y

3 3 y x x x

3 3 3