### Home > CALC > Chapter 11 > Lesson 11.4.1 > Problem 11-131

11-131.

**Multiple Choice: **, shown below, is twice differentiable. Examine the graph and decide which statement below is true.

slope at

*(positive or negative?)*

*concavity at*

*(up or down?)*

11-131.

**Multiple Choice: **, shown below, is twice differentiable. Examine the graph and decide which statement below is true.

slope at