An ellipse has the equation 16x2 + 9y2 – 32x – 128 = 0. Its eccentricity is:

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter11: Topics From Analytic Geometry
Section11.2: Ellipses
Problem 29E
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An ellipse has the equation 16x2 + 9y2 – 32x – 128 = 0. Its eccentricity is:

a. 0.88            b. 0.77                          

c. 0.66            d. 0..55

 

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