Answer:
I think it is D
Step-by-step explanation:
There are three basic methods for solving quadratic equations: factoring, using the quadratic formula, and completing the square.
For direct variation, y = kx
8 = -4k
k = 8/-4 = -2
Therefore, required equation is y = -2x
when x = 7, y = -2(7) = -14
<span>3x − x + 2 = 12
2x + 2 = 12
2x = 10
x = 5
answer
x = 5</span>
