Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 3 - Section 3.6 - Rational Functions - 3.6 Exercises - Page 308: 28

Answer

x-int: (0,0) y-int: (0,0) Vertical Asymptotes: x=-1, x=2 Horizontal asymptote: y=0

Work Step by Step

From the graph: The function crosses the x and y-axis at (0,0), so the x-intercept and y-intercept are both equal to 0 The vertical asymptotes (as indicated by the blue lines in the graph) are at x=-1, and x=2 The horizontal asymptote is y=0, which is also the x-axis. The middle part of the function in the domain (-1, 2) crosses the horizontal asymptote, but that is completely ok. The left part with domain (-∞, -1) and the right part of the function with domain (2, ∞) approaches 0.
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