Asked by Carol
Find the center and radius of the circle with equation x2 + y2 - 6x + 10y + 9 = 0.
center ( ? , ? )
radius ?
center ( ? , ? )
radius ?
Answers
Answered by
Steve@Math
just complete the squares for x and y:
x^2-6x + y^2+10y = -9
x^2-6x+9 + y^2+10y+25 = -9+9+25
(x-3)^2 + (y+5)^2 = 25
I assume you can take it from there, eh?
x^2-6x + y^2+10y = -9
x^2-6x+9 + y^2+10y+25 = -9+9+25
(x-3)^2 + (y+5)^2 = 25
I assume you can take it from there, eh?
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