Math Question from college board blue book

<p>on pg.411 the question #13 in section 6 math doesn't make sense to me. how is number 13, 3? isn't it 4? can someone plz explain thnxs.</p>

<p>h(x) = g(2x) + 2
h(1) = g(2*1) +2 = g(2) + 2
By looking at the graph, we can see that g(2) is 1.
So h(1) = 1 + 2 = 3.</p>