Unit 11 Circles - 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

Center of the circle in the equation (x-3)²+(y-2)²=16

Back

(3,2)

Front

In the equation (x-4)²+(x-3)²=25, the center of the circle is at...

Back

(4, 3)

Front

Which graph corresponds to

(x+2)²+ (y-3)²=36

? Options:

A

,

B

,

C

,

D

Back

A

Front

Write the equation of the circle graphed.

Back

(x-2)^2+(y+5)^2=9

Front

Radius of the circle in the equation (x+2)²+(y-3)²=4

Back

2

Front

Equation of a circle with radius 5 and center (-3, 4)?

Back

(x+3)² + (y-4)² = 25

Front

Equation of a circle with radius 2 and center (3, 4)?

Back

(x-3)² + (y-4)² = 4

Front

What is the radius of the circle given by the equation (x-7)² + (y+3)² = 25?

Back

5