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Chapter 2: Q. 18 (page 69)

Determine whether each relation represents a function. For each function, state the domain and range.

Short Answer

Expert verified

The domain of the function is{Lessthan9thgrade,9th-12thgrade,HighSchoolGraduate,SomeCollege,CollegeGraduate}and range is{$18,120,$23,251,$36,055,$45,810,$67,165}.

Step by step solution

01

Step 1. Given Information

In the given question we have to determine whether each relation represents a function and for each function, we have to state the domain and range.

02

Step 2. The relation in Figure is a function because each element in the domain corresponds to exactly one element in the range.

The domain of the function is {Lessthan9thgrade,9th-12thgrade,HighSchoolGraduate,SomeCollege,CollegeGraduate}.

03

Step 3. The set of all images of the elements in the domain is called the range of the function.

The range of the function is {$18,120,$23,251,$36,055,

$45,810,$67,165}

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