Find the Center and Radius (x-1)^2+(y+5)^2=4

${(x - 1)}^{2} + {(y + 5)}^{2} = 4$

Step 1

This is the form of a circle. Use this form to determine the center and radius of the circle.

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

Step 2

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.

$r = 2$

$h = 1$

$k = - 5$

Step 3

The center of the circle is found at $(h, k)$ .

Center: $(1, - 5)$

Step 4

These values represent the important values for graphing and analyzing a circle.

Center: $(1, - 5)$

Radius: $2$

Step 5

Find the Center and Radius (x-1)^2+(y+5)^2=4

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