What is the center & radius, given the equation
Write the equation, given radius and center
Write the equation, given other information
Graphing
Write equation by completing the square
100

(x-2)2+(y-5)2=92, the center point and radius of the circle are..

(2,5) r=9

100

The center is (1,-3) and the radius is 2

(x-1)+ (y+3)= 4

100

Center: (2, −5) Point on Circle: (−7, −1)

(x − 2)2 + (y + 5)2 = 97

100

x2 + y2 = 64

100

x2+ 8x +y2 − 2y = 64

(x+4)2 + (y-1)2 = 81

200

(x-3)2+(y-4)2=25, the center point and radius of the circle are..

(3,4) r=5

200

The center is (2,-1) and the radius is 4..

(x-2)2 + (y+1)2 = 16

200

Center: (14, 17) Point on Circle: (15, 17)

(x − 14)2 + (y − 17)2 = 1

200

(x-1)2 + (y-3)2 = 36

200

x2 + 2x + y2 - 10y = 55

(x + 1)2 + (y − 5)2 = 81

300

(x+8)2+(y+17)2=49, the center point and radius of the circle are..

(-8,-17) r=7

300

The center is (1,-4) and the radius is 3..

(x-1)2 + (y+4)2 = 9

300

Ends of a diameter: (−17, −9) and (−19, −9)

(x + 18)2 + (y + 9)2 = 1

300

x2 + y2 + 10x − 4y = 140

300

y2 + 2x + x2 = 24y − 120

(x + 1)2 + (y − 12)2 = 25

400

(x-2)2+(y+5)2=289, the center point and radius of the circle are..

(2,-5) r=17

400

The center is (0,3) and the radius is √14

x2 + (y-3)2 = 14

400

Center: (0, -1) and Circumference = 50.2655

x2 + (y + 1)2 = 64

400

x2 + y2 − 6x − 10y + 16 = 0

400

x2 + y2 + 14x − 12y + 4 = 0

(x + 7)2 + (y − 6)2 = 81

500

(x-1)2+(y-2)2=20, the center point and radius of the circle are..

(1,2) r=2sqrt(5) or 4.47

500

The center is (13,-13) and the radius is 4sqrt(2)

(x − 13)2 + (y + 13)2 = 32

500

Center: (−2, 12) Area is = 28.27433

(x + 2)2 + (y − 12)2 = 9

500

x2 + y2 + 2x + 8y − 8 = 0