Write the equation of a circle given the center (-4, 4) and raduis r = 5.

Don Neufeld asked Jan 7, 2023

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Don Neufeld asked Jan 7, 2023

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15 votes

Answer:

A)
(x+4)^2+(y-4)^2=25

Explanation:

The equation of a circle is
(x-h)^2+(y-k)^2=r^2 where
(h,k) is the center and
is the radius. If
$(h,k)\rightarrow(-4,4)$ and
r=5 , then:

$(x-h)^2+(y-k)^2=r^2\\\\(x-(-4))^2+(y-4)^2=5^2\\\\(x+4)^2+(y-4)^2=25$

Therefore, the equation of the circle is
(x+4)^2+(y-4)^2=25

Cyva answered Jan 12, 2023

by Cyva

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