Question

Given the function fx) = 2(x + 8), find x if f(x) = 12. O a Ob -2

Answer 1

The function given:

`f(x)=2(x+8)`

We want to find the value of x for which the functional value is 12.

We simply plug in "12" in place of "f(x)" and then solve the function algebraically.

Show below is the process:

`\begin{gathered} f(x)=2(x+8) \\ 12=2(x+8) \\ 12=2x+2(8) \\ 12=2x+16 \\ 12-16=2x \\ 2x=-4 \\ x=-(4)/(2) \\ x=-2 \end{gathered}`

Correct Answer choice is C