Concavity of Functions Over Their Domains Practice Test

Concave up on $(-10,8)$; concave down on no interval

Concave up on $(-4,3)$ and $(3,8)$; concave down on $(-10,-4)$

Concave up on $(-10,3)$; concave down on $(3,8)$

Concave up on $(-10,-4)$; concave down on $(-4,3)$ and $(3,8)$

Concave up where $f'(x)$ is decreasing; concave down where $f'(x)$ is increasing