Precalculus
Demana Waits Foley Kennedy
Precalculus

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Chapter 3

Section 3.2, Extension of Exercises 60 (page 299)
Answers

Domain: All reals
Range:
Continuous
Decreasing in ; increas ing in
Symmetric with respect to the y-axis
Bounded below but not above
Local minimum of 1 at x = 0
No asymptotes
End behavior
Art instructions: The scale marks are 1 on both axes.

Extension of Exercise 53 (page 281)
Answers

Domain: All reals
Range: ( -1, 1)
Continuous
Increasing in
Symmetric with respect to the origin
Bounded above and below
No local extrema
Asymptotes:
End behavior:

Art instructions: The scale marks are 1 on both axes.

Section 3.5, Extension of Exercises 59 and 60 (page 301)
Answers

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