Determine the equation of the family of ellipses that have a common center O' (2, 3), a common focal axis parallel to the y-axis, and eccentricity equal to 1/2;  plot the graph of the family of ellipses for three different values ​​of the parameter.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter11: Topics From Analytic Geometry
Section11.2: Ellipses
Problem 35E
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1. Determine the equation of the family of ellipses that have a common center O' (2, 3), a common focal axis parallel to the y-axis, and eccentricity equal to 1/2;  plot the graph of the family of ellipses for three different values ​​of the parameter.

 2. The equation of a family of ellipses is 4x²+9y²+ ax + by - 11 = 0;  determine the equation of the element of the family that passes through the points P (2, 3) and Q (95, 1).

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