Use the graph of $y = f(x)$, assuming $f''(x) <0$ if $x=d$ and $f''(x)>0$ if $x=f$, to
answer parts (A) through (F).
Ay
Q
Q
f
a
b
d
G. (a,c);(c,d);(e.g)
H. The graph is never concave
downward.
(C) Identify intervals on which $f''(x) <0$. Choose the correct answer below.
A. (d,e);(g,h)
B. (a,b);(e,g)
C. (a,c);(c,e);(g,h)
D. (e,g)
E. (b,c);(c,e);(g,h)
F. (a,c);(c,d);(e,g)
G. (b,c);(c,d);(e,g)
H. $f''(x) \geq 0$ over (a,h)
