Question

The graphs of f and g are shown. Let
h(x) = f(g(x))
and
s(x) = g(f(x)).

f(-1)= 4
f'(x)=1
g(-1)=5
g'(-1)=-1/2
f(8)= 6
f'(x)= 2
g(x)= 2
g'(x)=-1/2

(a) Find
h'(−1).


(b) Find
s'(8).