Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Chapter 8 - Rational Functions - 8-4 Rational Expressions - Practice and Problem-Solving Exercises - Page 533: 55

Answer

Vertical asymptotes: $\quad x = -\frac{2}{3}$ and $x = -1$ No removable discontinuities or holes.

Work Step by Step

To find the vertical asymptote, find the zeros of the denominator by setting each factor equal to zero and solving: $3x + 2 = 0$ Subtract $2$ from both sides of the equation: $3x = -2$ Divide both sides of the equation by $3$: $x = -\frac{2}{3}$ $x + 1 = 0$ Subtract $1$ from each side of the equation: $x = -1$ We have vertical asymptotes at $x = -\frac{2}{3}$ and $x = -1$ only if they are not zeros of the numerator. In this exercise, $x = -\frac{2}{3}$ and $x = -1$ are not zeros of the numerator; therefore, they are vertical asymptotes of this function. This also means that this function has no removable discontinuities or holes because there are no common zeros in the numerator and denominator.
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