Graph (x-1)^2+(y+2)^2=4

Math
(x-1)2+(y+2)2=4
This is the form of a circle. Use this form to determine the center and radius of the circle.
(x-h)2+(y-k)2=r2
Match the values in this circle to those of the standard form. The variable r represents the radius of the circle, h represents the x-offset from the origin, and k represents the y-offset from origin.
r=2
h=1
k=-2
The center of the circle is found at (h,k).
Center: (1,-2)
These values represent the important values for graphing and analyzing a circle.
Center: (1,-2)
Radius: 2
Graph (x-1)^2+(y+2)^2=4

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