writing equations of circles

What is the equation of a circle with radius 2 and center (3, 4)?

• (x + 3)² + (y + 4)² = 2

• (x - 3)² + (y - 4)² = 2

• (x + 3)² + (y + 4)² = 4

• (x - 3)² + (y - 4)² = 4

Tags

CCSS.HSG.GPE.A.1

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

Tags

CCSS.HSG.GPE.A.1

Which graph corresponds to

x² + (y - 6)² = 9

• A

• B

• C

• D

Tags

CCSS.HSG.GPE.A.1

In the equation (x - 3)² + (y - 2)² = 16, the center of the circle is...

• (3, 2)

• (-3, -2)

• (-2, -3)

• (2, 3)

Tags

CCSS.HSG.GPE.A.1

In the equation (x + 2)² + (y - 3)² = 4, the radius of the circle is...

• 4

• 2

• 3

• 16

Tags

CCSS.HSG.GPE.A.1

What is the equation of the circle?

• (x+1)² + (y +1)² = 3

• (x+1)² + (y -1)² = 3

• (x+1)² + (y +1)² = 9

• (x-1)² + (y -1)² = 9

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

What is the standard equation of a circle?

• (x-k)² + (y-h)² = r²

• (x+h)² + (y+k)² = r²

• (x-h)² + (y-k)² = r²

• (k-x)² + (h-y)² = r²

Tags

CCSS.HSG.GPE.A.1