### Home > PC3 > Chapter 2 > Lesson 2.1.1 > Problem 2-9

2-9.

CURVE SKETCHING

If a curve is increasing, then it is "going up" when you trace it from left to right.

Sketch a curve that increases then decreases. What is the point where a function changes from increasing to decreasing called?

Sketch a curve that decreases then increases. What is the point where a function changes from decreasing to increasing called?