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Q: What is the equation of a circle with center -1 and 2 and radius 4?

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3.14 x 1

This makes no sence

If you mean a circle center at (3, 1) and a radius of 2 then the equation of the circle is (x-3)^2 +(y-1)^2 = 4

If you mean a circle center at (3, 1) and a radius of 2 then the equation of the circle is (x-3)^2 +(y-1)^2 = 4

A unit circle is a circle of radius 1. If it's center is at the origin of an xy-coordinate system, then the equation is x (squared) + y (squared) = 1

The equation is: (x+1)^2 +(y+5)^2 = 36

(x - 1)2 + (y + 1)2 = 1

(x-3)2 + (y-1)2 = 42

(x + 1)2 + (y + 5)2 = 36

(x + 2)2 + (y - 2)2 = 1

It is: (x-1)^2 +(y+4)^2 = 4

It is: (x+3)^2+(y-1)^2 = 25

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