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 ( x – h ) 2 + ( y – k ) 2 = r 2 Match the values in this circle to those of the standard form. The variable r r represents the radius of the circle, h h represents the x-offset from the origin, and k k represents the y-offset from origin. r = 8 r = 8 h = 9 h = 9 k = 0 k = 0 The center of the circle is found at ( h , k ) ( h , k ) . Center: ( 9 , 0 ) ( 9 , 0 ) These values represent the important values for graphing and analyzing a circle. Center: ( 9 , 0 ) ( 9 , 0 ) Radius: 8

## Answers ( )

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

(

x

–

h

)

2

+

(

y

–

k

)

2

=

r

2

Match the values in this circle to those of the standard form. The variable

r

r

represents the radius of the circle,

h

h

represents the x-offset from the origin, and

k

k

represents the y-offset from origin.

r

=

8

r

=

8

h

=

9

h

=

9

k

=

0

k

=

0

The center of the circle is found at

(

h

,

k

)

(

h

,

k

)

.

Center:

(

9

,

0

)

(

9

,

0

)

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

Center:

(

9

,

0

)

(

9

,

0

)

Radius: 8

Your Center is : (-9,0).