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Q. 7

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Precalculus Enhanced with Graphing Utilities
Found in: Page 174
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 6– 8, graph each quadratic function using transformations (shifting, compressing, stretching, and/or reflecting).

fx=-x-42

The required graph is

See the step by step solution

Step by Step Solution

Step 1. Given information.

The given quadratic function is fx=-x-42

Step 2. Determine the horizontal and vertical shift.

Compare the function withfx=x-h2+k and h and k.

localid="1646225245025" fx=-x-42f(x)=ax-h2+kSo, h=4k=0a=-1

Step 3. plot the graph  of the parent function. 

Plot the graph of f(x)=x2.

Step 4. Reflect the graph about x-axis.

Reflect the graph of f(x)=x2about x-axis to plot f(x)=-x2.

Step 5. Horizontal shift of the graph.

Shift the graph of fx=-x2 to 4 units right to plot f(x)=-(x-4)2.

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