Answer
f(2)=-4 and f(7)=6
Work Step by Step
To calculate the output, we plug in the x value for each x:
f(2)=2(2)-8=-4
f(7)=2(7)-8=6
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 4 - An Introduction to Functions - Chapter Review - Page 286: 21
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