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Home > CALC > Chapter 4 > Lesson 4.3.2 > Problem 4-112
4-112.
Refer to the graph below of
Where is
increasing? How can you tell? Notice that this is the graph of
, the slopes of , and will increase where its slopes are positive. Approximate the interval on which
is concave up. Justify your conclusion with the graph. Is
positive or negative? Explain how you know. represents the slopes of the given graph, . So look at the graph. Does it have a positive or a negative slope at ?