Slope-Intercept Form

Linear equations

100

2+x=8

x=6

200

-7+2x=-9

x=-1

300

4(x+3)=2

x=-5/2

400

-1/4x+2=9

x=-28

500

9(2x+4)=7x-2

x=-38/11

Y-intercept

100

6x+2y=6

3

200

5x-(1y)=4

-4

300

6x-9=7y

-9/7

400

3x+(-2y)=12

-6

500

9x-3y=-5

5/3

Slope/Y-intercept

100

Y=5x-2

m = 5 b = -2

200

Y=9x-3

m = 9/1 b = (0,-3)

300

Y=3/1x+2

m = 3/1 b = (0,2)

400

Y=5/7x+1

m = 5/7 b = (0,1)

500

Y=4/5x-9

m = 4/5 b = (0,-9)

Type of slope

100

(3, 0), (4,0), (5,0)

Zero slope

200

(2,4), (3,6), (4,8)

Positive slope

300

(1,-3),(2,-5),(3,-7)

Negative slope

400

(3,4), (3,-1),(3,0)

Undefined

500

(2,10), (3,7), (4,4)

Negative slope

Equation

100

Convert this equation into slope-intercept form: 2x+1y=0

y=-2x

200

Convert this equation into slope-intercept form: -4x+2y=1

y=2x+1/2

300

Convert this equation into slope-intercept form: 8x+3y=-2

y=-8/3x-2/3

400

Convert this equation into slope-intercept form: 5x+4y=9

y=-5/4x+9/4

500

Convert this equation into slope-intercept form: -9x+3y=-6

y=3x-2