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# Answer: Graphing rational functions Use the guidelines of ISBN: 9780321570567 2

## Solution for problem 18E Chapter 4.3

Calculus: Early Transcendentals | 1st Edition

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Problem 18E

Graphing rational functions ?Use the guidelines of this section to make a complete graph of f.

Step-by-Step Solution:
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Solution: Step1 Given function is f(x)= 2x8 The zero of the denominator is x=4 so, the domain is { x; x= / 4} This function consists of an even function divided by an odd function. The product of even and odd function is odd. Therefore, the graph is symmetric about the origin. Step2 Differentiate the given equation to find f’(x) we get, f’(x)= 2 - 2(2x3) 2x8 (2x8) 2(2x8)2(2x3) = (2x8) = 4x162x+6 (2x8) = 102 (2x8) Again differentiate f’(x) to find f’’(x) we get, 20 f’’(x)= (2x8).2 40 = 3 (2x8) Step3 To get extreme values...

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##### ISBN: 9780321570567

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