Circle of Center and Radius Equation

• Center: (0,0) Radius: 7

• Center: (0,0) Radius: 49

• Center: (1,1) Radius: 4

• Center: (1,2) Radius: 0

• Center: (0,0) Radius: 9

• Center: (-2, 4) Radius: 9

• Center: (1,1) Radius: 18

• Center: (-2, 2) Radius: 18

• Center: (-5,-2) Radius: 9

• Center: (5, 2) Radius: 81

• Center: (-2, -5) Radius: 2

• Center: (2, 5) Radius: 3

• Center: (4,-8) Radius: 1

• Center: (4, -8) Radius: 0

• Center: (-4, 8) Radius: 2

• Center: (-4, 8) Radius: 1

Determine the equation of a circle with center (5,-3) and radius of 9

• x²+y²-10x+6y-47=4

• x²+y²-10x-6y-47=0

• 2x²+y²+10x+6y-47=0

• x²+y²-10x+6y-47=0

What is the equation of a circle with radius 4 and center (0, 8)?

• x² + (y - 8)² = 16

• (x - 8)² + y² = 4

• x² + (y - 8)² = 4

• x² + (y + 8)² = 16

What is the equation of the circle shown in the graph?

Mathematical Equivalence

ON

Determine the center and radius:
x² + y² - 10x + 8y -8 = 0

• C = (5,-4) r = 7

• C = (-5,4) r = 7

• C = (-4,5) r = 49

• C = (5,-4) r = 49

What are the coordinates of the center and the radius of the circle with an equation:
(x + 7)² + (y - 6)² = 64?

• Centre (7,-6)
  Radius = 8 units

• Centre (-7,6)
  Radius = 64 units

• Centre (-7,6)
  Radius = 8 units

• Centre (7,-6)
  Radius = 64 units

What is the equation of the circle, with centre (-4,5) and radius 6 units?

• (x - 4)^2 + (y + 5)^2 = 6

• (x - 4)^2 + (y + 5)^2 = 36

• (x + 4)^2 + (y - 5)^2 = 6

• (x + 4)^2 + (y - 5)^2 = 36