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OpenStudy (anonymous):
Graph the circle Given x^2+ y^2- 4x + 8y + 16 = 0 When solving for a circle I did the following steps: Place in standard notation. x^2- 4x + y^2+ 8y = -16 Complete the square. x^2- 4x + 4 + y^2+ 8y + 16 = -16 + 4 +16 (x - 2) ^2 + (y + 4) ^2= 4 = 2^2 The equation is now written in standard form. The center is (2 ,-4) and the radius is 2.
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OpenStudy (anonymous):
So my circle would have points that look like this: Center= 2,-4 2,-2 0,-4 4,-4 2,-6
OpenStudy (anonymous):
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