# math

posted by
**Renee**
.

Determine where the function is concave upward and where it is concave downward.

Concave upward:

A. (-/infty,0)

B.(-1,1)

C.(0, infinity)

D. (- infinity,infinity)

E. (no interval)

Concave downward:

A.(-/infty,0)

B.(-1,1)

C.(0, infinity)

D.(- infinity,infinity)

E. no interval