Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 4 - An Introduction to Functions - Chapter Test - Page 287: 12


The range is $\{84,24,4,15.25,84\}$

Work Step by Step

The domain of $f(x)=5x^2+4$ is $\{-4,-2,0,1.5,4 \}$. Evaluate f(x) for each domain value. $f(-4)=5(-4)^2+4=84$ $f(-2)=5(-2)^2+4=24$ $f(0)=5(0)^2+4=4$ $f(1.5)=5(1.5)^2+4=15.25$ $f(4)=5(4)^2+4=84$ The range is $\{84,24,4,15.25,84\}$.
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