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Chapter 7
Section 7.1, Extension of Exercise 68 (page 576)
Answers
Section 7.3, Extension of Exercises 93 and 94
(page 605)
Answers
(a) 
(b) Art instructions: The scale marks are 1 on both axes.
(c) -2, 1, 3
(d) 
(e) Both equal to 2.
Section 7.5 Extension of Exercise 49 (page 623)
Answers
Art instructions: Draw the graph of
in 
The scale marks are 1 on both axes.
