Precalculus: Mathematics for Calculus, 7th Edition

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

Chapter 2 - Section 2.1 - Functions - Exercises: 38

Answer

$$f(\frac{x}{3}) = 2x-18 $$ $$\frac{f(x)}{3} = 2x-6$$

Work Step by Step

For x = $\frac{x}{3}$ $f(\frac{x}{3})= 6(\frac{x}{3}) - 18$ ... multiply and simplify $=2x -18$ _______________ $f(x) = 6x-18$ therefore $\frac{f(x)}{3} = \frac{6x-18}{3}$ ... simplify $=2x -6$
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