Equation of a Circle

Find the coordinates of the center of the following circle. (x - 3)² + (y - 7)² = 49

(3,7)

Find the coordinates of the center of the following circle. (x - 5)² + (y + 3)² = 25

(5,-3)

Enter the equation of the circle described below. Center (0, 4), radius √3

(x)²+(y-4)²=3

Select interior, exterior, or on the circle (x - 5) 2 + (y + 3) 2 = 25 for the following point. (2, 3)

exterior

Select interior, exterior, or on the circle (x - 5) 2 + (y + 3) 2 = 25 for the following point. (5, -3)

exterior

The equation of the circle whose center is (0, 3) and radius is length 4 is

x² + (y - 3)² = 16

The equation of the circle whose center is (0, 0) and radius is length 9 is

x² + y² = 81

Find the length of the radius of the following circle. (x + 2)² + y² = 10

√(10)

Select interior, exterior, or on the circle (x - 5) 2 + (y + 3) 2 = 25 for the following point. (-2, 4)

exterior

Find the length of the radius of the following circle. x² + y² = 16

4

Select interior, exterior, or on the circle (x - 5) 2 + (y + 3) 2 = 25 for the following point. (5, 2)

exterior

Enter the equation of the circle described below. Center (-3, 0), radius √5

(x+3)²+(y)²=5

Enter the equation of the circle described below. Center (0, 0), radius = 4

(x-0)²+(y-0)²=16

Enter the equation of the circle described below. Center (3, -2), radius = 5

(x-3)²+(y+2)²=25

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers. Enter the equation of the circle described below. Center (5, 2), radius = 3

(x-5)²+(y-2)²=9

Select interior, exterior, or on the circle (x - 5) 2 + (y + 3) 2 = 25 for the following point. (0, - 3)

on the circle

Select interior, exterior, or on the circle (x - 5) 2 + (y + 3) 2 = 25 for the following point. (3, 2)

on the circle

What is the equation for a circle centered at the origin?

r²=x²+y²