Determine the amplitude and midline of the periodic functions below and decide whether their graphs are vertical stretches and/or shifts of the graphs of y=sin(t) or y=cos(t).

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.5: Trigonometric Graphs
Problem 29E
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Determine the amplitude and midline of the periodic functions below and decide whether their graphs are vertical stretches and/or shifts of the graphs of y=sin(t) or y=cos(t).

First graph is question (a)

Second graph is question (b)

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