What is the equation of a circle centered at (-3,1) with radius 7?

1 answer:

8 0

The standard form of a circle is $(x-h)^2+(y-k)^2=r^2$ , where h and k are the coordinates of the center and r is the radius. We will fill in accordingly with what we have. $(x-(-3))^2+(y-1)^2=7^2$ . Simplifying a bit we have $(x+3)^2+(y-1)^2=49$ . That's the equation for your circle.

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