Question

Diagram 2 shows the function `p` maps `x` to `y` and the function `q` maps `y` to `z`. Given `p:x->x-2` and `q:y->-8+3y`. Find the value of `k`.?

Answer 1

I don't see `p` and `q` on that diagram, but it seems `k=q(3)=-8+3(3)=1`