Finding Center and Radius of Circles Written in Standard Form

It is a line segment from the center to any point on the circle.

• chord

• diameter

• radius

• secant

• (3, 2)

• (-2, 3)

• (-3, -2)

• (2, 3)

Tags

CCSS.HSG.GPE.A.1

Tags

CCSS.HSG.GPE.A.1

What is the center and radius?

• Center: (-3,4)

  Radius: 3

• Center: (3,4)

  Radius: 3

• Center: (4,-3)

  Radius: 9

• Center: (4,3)

  Radius: 9

Tags

CCSS.HSG.GPE.A.1

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

• Center is (5,1) and radius is 8

• Center is (-5, 1) and radius is 8

• Center is (-1, 5) and radius is 8

• Center is (-5,-1) and radius is 8

Tags

CCSS.HSG.GPE.A.1

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

• Center (4,3)
  Radius = 5 units

• Center (4,3)
  Radius = 25 units

• Center (-4,-3)
  Radius = 25 units

• Center (-4,-3)
  Radius = 5 units

Tags

CCSS.HSG.GPE.A.1

What is the center and the radius of the circle with equation, (x-4)² + (y-2)² = 25

• Center is (5,2) and radius is 4.

• Center is (2,5) and radius is 4

• Center is (2,4) and radius is 5

• Center is (4, 2) and radius is 5

Tags

CCSS.HSG.GPE.A.1

Identify the center and the radius.

• Center: (-7, 12)

  Radius: 6

• Center: (7, -12)

  Radius: 36

• Center: (9, 11)

  Radius: 6

• Center: (-7, -12)

  Radius: 6

Tags

CCSS.HSG.GPE.A.1

Identify the center and the radius.

• Center: (12, -14)

  Radius: 4

• Center: (-12, -14)

  Radius: 4

• Center: (12, 14)

  Radius: 4

• Center: (-12, -12)

  Radius: 16

Tags

CCSS.HSG.GPE.A.1

What is the center and radius given the equation, 8x+x²-2y+y²-64=0?

• Center: (-4, 1), Radius: 9

• Center: (4,1), Radius: 9

• Center: (1,-4), Radius: 81

• Center: (-4, 1), Radius: 81

Tags

CCSS.HSG.GPE.A.1