Chapter 4 - An Introduction to Functions - 4-1 Using Graphs to Relate Two Quantities - Practice and Problem-Solving Exercises - Page 237: 8

C

In the graph, the temperature increases from point 1 to point 2, and from point 2 to point 3. The temperature then drops at point 4. This corresponds to table C, where the temperature increases from 24 to 26 to 27 and then falls to 21.