Question

Given the function f(x) = 2|x + 6| -4, for what values of x is f(x) = 6?

Answer 1

Answer:

f(x) = 2|x + 6|-4

6=2|x + 6|-4

10= 2|x + 6|

divide by 2

5=|x + 6|

x = 5-6

x = -1

so x should be -1