Theory and ExamplesThe accompanying figure shows a portion

Chapter 4, Problem 103E

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QUESTION:

Problem 103E

Theory and Examples

The accompanying figure shows a portion of the graph of a twice-differentiable function At each of the five labeled points, classify as positive, negative, or zero.

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QUESTION:

Problem 103E

Theory and Examples

The accompanying figure shows a portion of the graph of a twice-differentiable function At each of the five labeled points, classify as positive, negative, or zero.

ANSWER:

Solution

Step 1 of 2

At point P

The function is decreasing and concave up

So  it is negative 

and  it is positive.

At point Q

The function is increasing and concave up

 So  it is positive.

and  it is positive. 

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