### Home > CALC > Chapter 3 > Lesson 3.4.4 > Problem 3-183

3-183.

Determine algebraically whether is concave up or concave down at

*and at*

*. Then, verify your solution with a graph of*

A function is concave up when its

3-183.

Determine algebraically whether is concave up or concave down at

A function is concave up when its