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Find the equation to a circle with a radius of 10 and a center at (-1, 7)​

1 Answer

1 vote

Answer:


\large\boxed{(x+1)^2+(y-7)^2=100}

Explanation:

The equation of a circle in standard form:


(x-h)^2+(y-k)^2=r^2

(h, k) - center

r - radius

We have the center (-1, 7) and the radius r = 10. Substitute:


(x-(-1))^2+(y-7)^2=10^2\\\\(x+1)^2+(y-7)^2=100

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