Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 10 - Section 10.4 - The Parabola; Identifying Conic Sections - Exercise Set - Page 800: 75

Answer

vertex:$(-4,-3)$ and defines at opens to the right. Domain is: $[-4, \infty)$ and range is: $(-\infty, \infty)$

Work Step by Step

Since, we have $x=y^2+6y+5$ This equation can be written as: $x=(y^2+6y+9)+5-9$ or, $x=(y-(-3))^2+(-4)$ Standard form of a horizontal parabola is $x=a(y-k)^2+h$ Here, vertex:$(h,k)$ Compare the above equation with the standard form. Thus, we have vertex:$(-4,-3)$ and defines at opens to the right. Hence, Domain is: $[-4, \infty)$ and range is: $(-\infty, \infty)$
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