/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 55 Use a vertical shift to graph on... [FREE SOLUTION] | 91Ó°ÊÓ

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Use a vertical shift to graph one period of the function. $$y=\cos x-3$$

Short Answer

Expert verified
The given function \(y=\cos x - 3\) is a vertical shift of the cosine function, where the entire graph of the basic cosine function is moved 3 units downwards.

Step by step solution

01

Understand the Basic Cosine Function

The basic cosine function \(y=\cos x\) has a period of \(2 \pi\), and wave amplitude of 1. It reaches its maximum value at \(x=0\) (and multiples of \(2 \pi\)) and minimum values at \(x=\pi\) (and multiples of \(2 \pi\)).
02

Understanding the Impact of -3 on the Cosine Function

The -3 at the end of the function \(y=\cos x - 3\) indicates a vertical shift of the cosine function downwards by 3 units on the y-axis. The wave amplitude remains the same as the basic cosine function, at 1. So, the existing minimum and maximum values for the function will be shifted down by 3 units.
03

Graphing the Function

To graph this function, first draw the basic cosine function. Then, translate the graph 3 units downwards. The maximum of the function will now be at \(y=1-3=-2\), and the minimum of the function will be at \(y=-1-3=-4\).

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