MATH HELP 15 POINTS SLOPES!!!!!! ANSWER ALL 3 QUESTIONS

Question 1. 
First solve for slope: [tex] \frac{0-8}{8-0} = \frac{-8}{8} = -1[/tex]
Point-slope formula is: [tex]y2 - y1 = m(x - x1) [/tex] where m = slope.
Plug in values for PS form: [tex]y - 0 = -1(x - 8)[/tex]
So the answer is Choice 2. 

Question 2. 
Choice D. 
Points given: (-10, -7) and (3, -7) 
Both y -intercepts are equivalent to -7

Question 3.
Choice A.
Points given: (2, 4) and (2, -7) 
Both x - intercepts are equivalent to 2