Zach J.
asked • 09/09/21Standard Equation of A CIRCLE HAS A CENTER A=(-3,2)
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1 Expert Answer
The standard form for a circle is
(x-h)² + (y-k)² = r²
Where (h,k) is the center and r is the radius.
In this case you know h and k but you don't know r, so substitute h and k (-3 and 2) in the equation, and leave r as a variable. Be careful with signs in the subtraction.
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Paul M.
09/09/21