Equations of Circles

Front

What is the standard equation of a circle?

Back

(x-h)² + (y-k)² = r²

Front

What does (h,k) stand for in the standard circle equation?

Back

(h,k) is the center of the circle

Front

What does the r in the standard equation stand for?

Back

r is the radius of the circle

Front

Equation of a circle with center (7, 0) and radius 3.

Back

(x - 7)² + y² = 9

Front

What is the center and radius of a circle with an equation (x+5)² + (y-1)² = 64?

Back

Center is (-5, 1) and radius is 8

Front

What are the coordinates of the center and the radius of the circle with equation:
(x - 4)² + (y - 3)² = 25 ?

Back

Center (4,3)
Radius = 5 units

Front

Equation of a circle with radius 4 and center (0, 8)?

Back

x² + (y-8)² = 16

Front

The diameter of a circle has length 12. The center is at (-5, 2). What is the equation of the circle?

Back

(x + 5)² + (y - 2)² = 36

Front

Equation for the circle? Options: (x+1)+(y+1)=9, x²+y²=9, x²+y²=3

Back

x²+y²=9

Front

Which graph corresponds to 
(x)²+ (y-6)²=9? Options: A, B, C, D

Back

B