Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 2 - Section 2.2 - Graphs of Functions - 2.2 Exercises - Page 167: 4

Answer

See graphic

Work Step by Step

Function 1 is not defined for negative x values so that must be the square root function. Function 2 must be cubic because it has the highest rate of rate of change. Function 3 must be the absolute value function - its slope is 1 and -1. And that leaves the last as quadratic.
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