What are the center and radius of the circle given by the equation (x+5)^2+(y-7)^2=9? A. (5, –7); 3 B. (–5, 7); 3 C. (5, –7); 9 D. (–5, 7); 9

asked Oct 9, 2019 193k views

4 votes

What are the center and radius of the circle given by the equation

(x+5)^2+(y-7)^2=9?
A. (5, –7); 3
B. (–5, 7); 3
C. (5, –7); 9
D. (–5, 7); 9

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2 votes

b that is the answer

Vineel answered Oct 11, 2019

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3 votes

The equation of a circle:

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

(h, k) - a coordinates of the center

r - a radius

$(x+5)^2+(y-7)^2=9\\\\(x-(-5))^2+(y-7)^2=3^2$

Answer: B. (–5, 7); 3

Ymz answered Oct 15, 2019

by Ymz

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