Answer
Not a function.
Work Step by Step
If you graph this equation you will get a parabola whose domain peaks at 5 and approaches negative infinity. This graph does not pass the vertical line test so it is not a function.
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter 2 - Mid-Chapter Check Point - Page 269: 8
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