Introduction to Functions

Question 59794 • AZ-Algebra 1A (MA101)

The set of ordered pairs (–1, 8), (0, 3), (1, –2), and (2, –7) represent a function. What is the range of the function?

Answer

{x: x = –1, 0, 1, 2}

{y: y = –7, –2, 3, 8}

{x: x = –7, –2, –1, 0, 1, 2, 3, 8}

{y: y = –7, –2, –1, 0, 1, 2, 3, 8}

Explanation

The range is the set of output values, which are the second numbers in each ordered pair. These are 8, 3, –2, and –7, so the range is {y: y = –7, –2, 3, 8}. Choice B lists exactly those values.

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