Problem

For each of the following rules, state whether it defines y as a function of x or not. (Se...

For each of the following rules, state whether it defines y as a function of x or not. (See Examples.)

x	9	4	1	0	1	4	9
y	3	2	1	0	−1	−2	−3

Example 1

Which of the following rules describe functions?

Example 2

Decide whether each of the following equations defines y as a function of x.

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Solutions For Problems in Chapter 3.1

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