In Example 2, change y + 2 to y 2 and change the sign before the
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In Example 2, change y + 2 to y − 2 and change the sign before the second term from + to −. Then describe and sketch the curve.
Data from Example 2
Describe the curve of the equation
We see that this equation fits the form of Eq. (21.30) with h = 3 and k = −2. It is the equation of an ellipse with its center at (3,−2) and its major axis parallel to the x-axis. The semimajor axis is a = 5, and the semiminor axis is b = 3. The ellipse is shown in Fig. 21.85.
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Related Book For
Basic Technical Mathematics
ISBN: 9780137529896
12th Edition
Authors: Allyn J. Washington, Richard Evans
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