Equation of a Circle

In the equation (x+2)²+(y-3)²=4, the radius of the circle is...

• 4
• 2
• 3
• 16

The distance around a circle

• Diameter
• Radius
• Circumference
• Area

In the equation
(x-3)²+(y-2)²=16, the center of the circle is...

• (3,2)
• (-3, -2)
• (-2, -3)
• (2, 3)

Write the equation of a circle with center
(7, 0) with radius 3. 

• (x - 7)² + y² = 9
• x² + (y -7)² = 9
• (x - 7)² + y² = 3
• x² + (y -7)² = 3

What is the radius of the circle
(x+7)²+(y-2)²=144?

• 7
• 12
• 13

What is the equation for this circle?

• (x+1)+(y+1)=9
• x²+y²=9
• x+y=9

Write the equation of a circle with center (7, 0) with radius 3.

• (x - 7)² + y² = 9
• x² + (y -7)² = 9
• (x - 7)² + y² = 3
• x² + (y -7)² = 3

Which graph corresponds to 
(x)²+ (y-6)²=9

• A
• B
• C
• D

Write the equation of a circle with a center at (-2,1) and a point on the circle at (0,3).

Select all equations that have a radius of 3.

• (x-3)²+(y-3)²=3

• (x+6)²+(y-2)²=9

• (x+5)²+y²=6

• (x-7)²+(y-1)²=9

• (x-2)²+(y-3)²=6