Slope Intercept, Point-Slope and Standard Form Review!

Slope-Intercept Form

100

Slope = 4

y-intercept = -7

y = 4x - 7

200

Slope = 1/8

y-intercept = 24

y = 1/8x + 24

300

Line has a slope of -3 and passes through, (0,9)

y = -3x + 9

400

Line has a slope of 0 and passes through; (8,-5)

y = -5

500

(0,-2) and (3,4)

y = 2x - 2

Point Slope Form

100

Slope = -3

Point = (9,2)

y-2=-3(x-9)

200

Slope = 8

Point = (-6,2)

y-2=8(x+6)

300

(9,7) and (4,5)

y - 7 = 2/5 (x - 9)  or      

y - 5 = 2/5(x - 4)

400

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

y - 7 = -12/5(x + 2)   or  

 y + 5 = -12/5(x - 3)

500

Identify a point on the line and the slope of the line in the equation           y - 6 = 2(x + 4)

m = 2

(-4, 6)

What's my slope?

100

(12,8) and (4,3)

5/8

200

(7,9) and (13,5)

-2/3

300

(-2,7) and (4,7)

0

400

(0,4) and (0,7)

Undefined

500

(-9,-7) and (7,-4)

3/16

Point-Slope form to Slope-Intercept Form (Triple Points)

100

y-2=8(x-3)

y=8x-22

200

y+17=-3(x-1)

y=-3x-14

300

y-11=1/5(x-5)

y=1/5x+10

400

y+2=1/6(x-3)

y=1/6x-2.5

500

Write an equation in Point-Slope form that passes through: (-3, 10) and (1, 2)

Then write the equation in Slope-Intercept Form.

y - 2 = -2(x - 1) or y - 10 = -2(x + 3)

and   y = -2x + 4

Standard Form

100

What is the standard form equation?

Ax + By = C

200

Write this equation in standard form: y = 3x + 4

3x - y = -4

300

Write this equation in standard form: y = -2/3x + 1

2x + 3y = 3

400

Write the equation in slope-intercept form: 3x - y = 4

y = 3x - 4

500

Write the equation in Standard Form that passes through (3, 5) (-2, 10): 

x + y = 8