Question

how do i solve for x-intercept in: y = -2 (x + 8) + 2?

Answer 1

Perform the algebra, so you should get y=-2x-16+2, which simplifies to y=-2x-14. Then set y=0 and solve for x.

0=-2x-14

Answer 2

Look for a common factor.
0=-2(x+7)
0=-2 or 0=x+7

0 does not equal 2, so your left with 0=x+7, which means x=-7.

Your coordinate for the x-intercept would be (-7, 0).

Answer 3

Does this make sense? Let me know if you need me to explain anything.