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On what interval(s) is the graph concave upward?

User Beyonddc
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The interval where the function is concave upward is (-∝, 1)

How to determine the intervals the function is concave upward

from the question, we have the following parameters that can be used in our computation:

The graph

From the graph, we have the following

Increasing interval = (-1.5, 1)

This is because the y values increase as x increase

Decreasing interval = (-∝, -1.5) and (1, ∝)

This is because the y values decrease as x increase

Also, we have

Concave interval = (-∝, 1)

This is because the function takes a U-shape at this interval

On what interval(s) is the graph concave upward?-example-1
User Yiwanmian
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