Formulas
slope-intercept form given the following
Are AB and CD parallel, perpendicular or neither.
Parallel and perpendicular linear equations.
100

What is Point-Slope Formula

y-y1=m(x-x1)

100

100 slope =2/3 ; y-intercept = -1

y=2/3x - 1

100

y= -1/4x -2

y= 4x+5

Perpendicular

100

(2, 3) PARALLEL to y = x – 4

y=x+1

200

What is Slope-Intercept Form

y=mx+b

200

2x + 8y = 16

y=-1/4x+2

200

y= -2/5x+3

y= 2/5x+8

Neither  

200

(-2, 8) PERPENDICULAR to y = 2x + 5

y=-1/2x+7

300

What is Slope Formula?

y2-y1

x2-x1

300

3x – y = 5

y=3x-5

300

AB (3, 8)  (-6, 5); CD (-6, 7)  (-3, 8)

Parallel

300

(-6, -1) PARALLEL 2x + 3y = 3

y=-2/3x-5

400

What is Standard Form

ax+by=c

400

(1, 4); slope = -2

y=-2x+6

400

AB (-1, 3) and (1, 5);

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

Perpendicular 

400

(-2, -11) PERPENDICULAR to x + 4y = 8

y=4x-3

500

Give an example of a linear equation

Y=mx+b 

500

(-5, -11) and (-2, 1)

y=4x+9

500

4y = 3x – 4

4x + 3y = -6

Perpendicular

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