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15-08-2017
Mathematics

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What is the equation of a circle with a center (-2, 3) and a radius r = 5?

Respuesta :

15-08-2017

The formula for the equation of a circle is:
(x - h)^2 + (y - k)^2 = r^2

(h, k) is the center.

So the equation would be:
(x + 2)^2 + (y - 3)^2 = 5^2
or
(x + 2)^2 + (y - 3)^2 = 25

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