Question

PLEASE HELP!! WILL GIVE BRAINIEST!!! Please solve #7 and #8.

Answer 1

7)
slope = (1+3)/(-1+10) = 4/9

y = mx + b
1 = 4/9(-1) + b
b = 1 + 4/9
b = 13/9
equation
y = 4/9x + 13/9

answer is D.y = 4/9x + 13/9

8)
y = 3x - 3
perpendicular so slope = -1/3

passing thru (-7, 9)
equation
y - 9 = -1/3(x +7)

answer is D. y - 9 = -1/3(x +7)

Answer 2

The answer to 7 is:y = (4/9)x + (13/9). 
The answer to 8 is B, I think.