3 years ago

In the xy-plane, an equation of circle A is

Mathematics

1 answer:

blondinia [14]3 years ago

3 0

Answer: A

Explanation:

Because the center of circle A is (0,1) and circle B is one unit down, it would be x^2+y^2=1 because the center of circle B is (0,0). (The equation for a circle is (x-h)^2+(y-k)^2=r^2 with h and k as coordinates of the center of the circle and r as the radius.)

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