Answer:
<u><em>The answer would be 17</em></u>
Step-by-step explanation:
You are going to multiply -1 by -5 , that will equal positive 5
So you get 12+5 = 17
It can't be f(1) = 1 because a function can't have two images on the same x.
Check the picture below
in case you want to know how to get who's the adjacent or opposite, notice in the picture, if you put your eye on the angle itself, what you'd be facing is the opposite side, the adjacent is the side touching the angle.