Question

What is the x-intercept of the line containing the points (–6, 10) and (12, –2)?

Answer 1

Slope = (-2 - 10)/(12 + 6) = -12/18 = -2/3

y = mx + b
10 = -2/3(-6) + b
10 = 4 + b
b =6

equation
y = -2/3x + 6

x-intercept when y = 0
-2/3x + 6 = 0
-2/3x = -6
      x = 6 (3/2)
      x = 9

answer is d.9

Answer 2

The X intercept is 11. I even drew it but it's not there...