Introduction to Functions

Question 3 • TN-Algebra I

What is the range of the given function?{(–2, 0), (–4, –3), (2, –9), (0, 5), (–5, 7)}

Answer

{x | x = –5, –4, –2, 0, 2}

{y | y = –9, –3, 0, 5, 7}

{x | x = –9, –5, –4, –3, –2, 0, 2, 5, 7}

{y | y = –9, –5, –4, –3, –2, 0, 2, 5, 7}

Explanation

The range is the set of output values, which are the second numbers in each ordered pair. These are 0, –3, –9, 5, and 7, or {–9, –3, 0, 5, 7}. Therefore, the correct choice is B, the set of y-values.

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