Question

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Answer 1

My graphing calculator says g(4) = f(2).

The 4th selection, x=4, is appropriate.

Answer 2

To find the value for $g(x)=f(2)$, we first want to evaluate $f(2)$.

$f(2)=3(2)-1=5$

So, we set $g(x)$ equal to 5. 

$2x-3=5 \\ 2x=8 \\ x=4$

x = 4