Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 6 - 6.4 - Graphs of Sine and Cosine Functions - 6.4 Exercises - Page 464: 19

Answer

Both functions have the same amplitudes and periods but the graph of function $g$ is a vertical shift of $3$ units up of function $f$.

Work Step by Step

Using the equation of sine $y=a\sin b(x-c)+d$: For $f(x)=\sin x=1\sin 1(x-0)+0$, $a=1$ $period=\frac{2\pi}{b}=\frac{2\pi}{1}=2\pi$ $horizontal~shift=c=0=none$ $vertical~shift=d=0=none$ For $f(x)=3+\sin 2x=1\sin 2(x-0)+3$, $a=1$ $period=\frac{2\pi}{b}=\frac{2\pi}{1}=2\pi$ $horizontal~shift=c=0=none$ $vertical~shift=d=3$ Thus, both functions have the same amplitudes and periods but the graph of function $g$ is a vertical shift of $3$ units up of function $f$.
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