Conic Sections – The Circle

The standard form of a circle with radius “r” and centered at (h, k) is Eg. Write the equation of a circle with a radius of 8 units that has been translated 5 units to the right and 1 unit down from its standard position (ie. Center at origin). GENERAL FORM results when standard form is expanded. Eg. (x – 5)2 + (y + 1)2 = 64. Multiply this out and set it equal to zero. (Use FOIL) Remember, general form is written as ................
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