# Chapter 2 - Differentiation - 2.4 Exercises: 97

The graph with a maximum value of $3$ is $f'(x)$ while the other is $f(x).$

#### Work Step by Step

By checking the behavior of one graph at the roots of the other, it can be decided which graph is which. When the graph with a maximum value of 3 has a root, the other graph has a horizontal tangent; hence, the graph with maximum value of $3$ is $f'(x)$and the other is $f(x).$

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