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: 4

Answer

y-intercept is $\frac{1}{3}$

Work Step by Step

Given $r(x) = \frac{(x+1)(x-2)}{(x+2)(x-3)}$ The y-intercept is when x = 0, so substitute x=0 into r(x) $r(x) = \frac{(0+1)(0-2)}{0+2)(0-3)}$ $r(x) = \frac{1*-2}{2*-3}$ $r(x) = \frac{1}{3}$ Thus the y-intercept is $\frac{1}{3}$
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