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Q. 18

Precalculus Enhanced with Graphing Utilities
Found in: Page 113
Precalculus Enhanced with Graphing Utilities

Precalculus Enhanced with Graphing Utilities

Book edition 6th
Author(s) Sullivan
Pages 1200 pages
ISBN 9780321795465

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Short Answer

In Problems 7–18, match each graph to one of the following functions:

A. y = x2+ 2 B. y = -x2 + 2 C. y = x + 2 D. y = -x+ 2 E. y = (x - 2)2 F. y = -(x + 2)2 G. y = x-2 H. y = -x+2 I. y = 2x2J. y = -2x2 K. y = 2x L. y = -2x

The given graph is matched to the function K. y=2x.

See the step by step solution

Step by Step Solution

Step 1. Given Information 

There is the given graph we have to match each graph to its functions.

Step 2. Identifying the function of the graph 

The given graph is similar to the function of the graph y=x but it is vertically stretched by a factor of 2.

When the right side of a function y=f(x) is multiplied by a positive number a, the graph of the new function y=af(x) is obtained by multiplying each y-coordinate on the graph of y=f(x) by a. The new graph is a vertically stretched (if a>1) version of the graph of y=f(x).

Since the given graph is vertically stretched by factor of 2.

The function of the given graph is role="math" localid="1645865928495" y=2x that matched to option K.

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