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Chapter 2: Q. 20 (page 69)

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

{(-2,5),(-1,3),(3,7),(4,12)}

Short Answer

Expert verified

The domain of function is {-2,-1,3,4}and range is {5,3,7,12}.

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.

{(-2,5),(-1,3),(3,7),(4,12)}

02

Step 2. This relation is a function because there are no ordered pairs with the same first element and different second elements.

The domain is the set of all the values of x.

Domain:{-2,-1,3,4}

03

Step 3. The range is the set of all values of y.

Range:{5,3,7,12}

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