04/15 Circles' Review Quizizz

What is the coordinates of the center and the radius of the circle with equation:

(x - a)² + (y - b)² = r² ?

• Center (a,b)

  Radius = r^2 units

• Center (-a,-b)

  Radius = r units

• Center (a,b)

  Radius = r units

• Center (-a,-b)

  Radius = r^2 units

Tags

CCSS.HSG.GPE.A.1

What is the coordinates of the center and the radius of the circle with equation:

(x - 1)^2 + (y - 2)^2 = 3^2 ?

• Center (-1,-2)

  Radius = 3 units

• Center (1,2)

  Radius = 3 units

• Center (-1,-2)

  Radius = 9 units

• Center (1,2)

  Radius = 9 units

Tags

CCSS.HSG.GPE.A.1

What is 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 equation of the circle, with center (a,b) and radius r units?

• (x - a)^2 + (y - b)^2 = r^2

• (x + a)^2 + (y + b)^2 = r^

• (x - a)^2 + (y - b)^2 = r^

• (x + a)^2 + (y + b)^2 = r^2

Tags

CCSS.HSG.GPE.A.1

What is the equation of the circle, with center (4,2) and radius 5 units?

• (x + 4)^2 + (y + 2)^2 = 25

• (x + 4)^2 + (y + 2)^2 = 5

• (x - 4)^2 + (y - 2)^2 = 5

• (x - 4)^2 + (y - 2)^2 = 25

Tags

CCSS.HSG.GPE.A.1

Write the standard equation of the circle with the given center and radius; center (0,0) and radius: 3

• x² + y² = 3

• x² + y² = 6

• x² + y² = 9

See Picture

• A
• B
• C
• D

Tags

CCSS.HSG.GPE.A.1

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

• (x - 2)² + (y + 5)² = 36
• (x - 5)² + (y + 2)² = 6
• (x + 5)² + (y - 2)² = 36
• (x + 2)² + (y - 5)² = 6

Tags

CCSS.HSG.GPE.A.1

Which graph corresponds to

(x+2)²+ (y-3)²=36

• A

• B

• C

• D

Tags

CCSS.HSG.GPE.A.1

What is the center of the circle with equation x² + y² = 1?

• (1, 1)

• (0, 0)

• 1

Tags

CCSS.HSG.GPE.A.1