Question

Which is an equation in point-slope form for the given point and slope?



Point: (8,-4) ; Slope: -5/6

Answer 1

Point slope form is y = mx + b

m = slope

This can let us have y = -5x/6 + b

In order to find b, you have to substitute y and x into the equation

-4 = -5(8)/6 + b

-4 = -40/6 + b
-4 = -20/3 + b

-12/3 + 20/3 = b

8/3 = b

Does that make sense?

Answer 2

y = -5x/6 + 8/3

Answer 3

Hmm, there are only answer choices A. y+4=-5/6(x+8)

Answer 4

B. y-4=-5/6(x+8)

Answer 5

C. y+4=-5/6(x-8)

Answer 6

D. y-4=5/6(x-8)

Answer 7

The answer is C Point-slope form is: y-y1=m(x-x1). So y+4=-5/6(x-8)