Calculus: Early Transcendentals 8th Edition

Published by Cengage Learning
ISBN 10: 1285741552
ISBN 13: 978-1-28574-155-0

Chapter 10 - Section 10.5 - Conic Sections - 10.5 Exercises - Page 680: 6

Answer

vertex (-0.5,2) focus (0,2) directrix x=-1

Work Step by Step

simplify the equation to: (y-2)^{2}=2(x+\frac{1}{2}) (y-h)^{2}=4p(x-k) then the vertex is (h,k)=(-0.5,2) from the equation. from the equation 4p=2 then p=1/2 directrix formula: (x-h)=-p then (x+0.5)=-0.5 directrix is x=-1 the focus is (p+h,0+k) = (0.5-0.5,2)=(0,2)
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.