### Home > CCA2 > Chapter 2 > Lesson 2.2.1 > Problem 2-81

Refer to problem 2-69 in Lesson 2.1.5.

The domain is all the possible *x*-values that make sense in this problem. The range is all the possible *y*-values that make sense in the problem. For example, there won’t be any negative *y*-values here.

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Click the link at right for the full version of the eTool: CCA2 2-81 HW eTool