Answer
$\frac{\pi}{4}$, $left$.
Work Step by Step
The graph of $y = sin (x+\frac{\pi}{4})$ is obtained by shifting the graph of $y = sin (x)$ $\frac{\pi}{4}$ unit(s) to the $left$.
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 6 - The Circular Functions and Their Graphs - 6.4 Translations of the Graphs of the Sine and Cosine Functions - 6.4 Exercises - Page 611: 1
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