### Home > PC > Chapter 2 > Lesson 2.3.8 > Problem2-173

2-173.

The graph to the right shows the rate of salmon entering a fish hatchery during a $60$ minute period.

1. A gate fell during the time interval disrupting the flow of the salmon. About what time did this occur?

Where does the graph have a maximum followed by a steep decrease?

2. What does the shaded area represent?

Multiply the units on the axes.