Question

8. (03.02 MC)

Given the function f(x) = 2(x + 8), find x if f(x) = 12. (1 point)
2
40
-2
14

Answer 1

-2

Explanation:

Put the given value in the equation and solve for x.

f(x) = 12

f(x) = 2(x +8)

12 = 2(x +8) . . . . . use 12 for f(x)

6 = x +8 . . . . . . . . divide by 2

-2 = x . . . . . . . . . . subtract 8