28. An ellipse has the equation (x+6)2 /4 + (y− 4)2/36=1(a) Is the major axis horizontal or vertical?(b) Find the exact values of the foci of the ellipse. Show work.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter11: Topics From Analytic Geometry
Section11.3: Hyperbolas
Problem 46E
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28. An ellipse has the equation (x+6)2 /4 + (y− 4)2/36=1
(a) Is the major axis horizontal or vertical?
(b) Find the exact values of the foci of the ellipse. Show work.

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