Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 2 - Section 2.6 - Rational Functions and Their Graphs - Exercise Set - Page 399: 50

Answer

The graph has a vertical asymptote at $x=-2$. The graph intersects the x-axis at $\left( \frac{-3}{2},0 \right)$ and y-axis at $\left( 0,-\frac{3}{2} \right)$.

Work Step by Step

First, plot the graph for $f\left( x \right)\ =\ \frac{1}{x}$: Now, $f\left( x\ +\ a \right)$ implies that the graph is shifted leftwards by $a$ units. Plot $y\ =\ \frac{1}{x\ +\ 2}$ by shifting the graph of $f\left( x \right)\ =\ \frac{1}{x}$ , $2$ units to the left. Again, $f\left( x \right)\ -\ a$ implies a downwards shift in the graph by $a$ units. Plot $g\left( x \right)\ =\ \frac{1}{x\ +\ 2}\ -\ 2$ by shifting the graph of $y\ =\ \frac{1}{x\ +\ 2}$ , $2$ units downwards.
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