7) Graph the function: y = 4 cos 0 – 1 without the assistance of technology. Free Simple Grid Graph Paper Trom nip:/incompetech.com/graphpaperie

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.6: Additional Trigonometric Graphs
Problem 68E
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7) Graph the function: y = 4 cos 0 – 1 without the assistance of technology.
Free Simple Grid Graph Paper from http://ncompetech.com/graphpaperinte
Transcribed Image Text:7) Graph the function: y = 4 cos 0 – 1 without the assistance of technology. Free Simple Grid Graph Paper from http://ncompetech.com/graphpaperinte
Expert Solution
Step 1

If we have

y = 4cosθ -1

This is the normal cosine graph with an amplitude of 4 that is shifted "down" one unit. Thus, the normal cosine graph is shifted "down' by one unit and "stretched" vertically.

Here are the graphs ofy = cos θ    and   y = 4cosθ -1  

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