January 2015
Intermediate to advanced
1015 pages
318h 54m
English
Content preview from Algebra and Trigonometry, 5th Edition
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10.2 The Circle and the Ellipse
Given an equation of a circle, complete the square, if necessary, and then find the center and the radius and graph the circle.
Given an equation of an ellipse, complete the square, if necessary, and then find the center, the vertices, and the foci and graph the ellipse.
Circles
We can define a circle geometrically.
Recall the standard equation of a circle with center (h, k) and radius r.
Example 1
For the circle
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