Circle Equations

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 radius of the circle with this equation of  (x-5)²+(y+7)²=8?

• 4
• 8
• 4√2
• 2√2

Tags

CCSS.HSG.GPE.A.1

What is the center and radius for a circle with the equation:
(x-4)²+(y+2)²=25

• C:(4, -2), r=5
• C:(-4, 2), r=5
• C:(4, -2), r=25
• C:(-4, 2), r=25

Tags

CCSS.HSG.GPE.A.1

What is the center of a circle with equation (x-4)² + y² = 5?

• (-4, 0)
• (4, 0)
• (4, 1)
• (-4, 1)

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

Write the equation of the circle with center C( -5 , 8 ) and radius = 7

• ( x - 5 )² + ( y + 8 )² = 14

• ( x - 5 )² + ( y - 8 )² = 49

• ( x - 5 )² + ( y + 8 )² = 49

• ( x + 5 )² + ( y - 8 )² = 49

Tags

CCSS.HSG.GPE.A.1

Write the equation of the circle with center C( 4 , -8 ) and radius = 5

• ( x - 4 )² + ( y + 8 )² = 25

• ( x + 4 )² + ( y - 8 )² = 25

• ( x - 4 )² + ( y - 8 )² = 25

• ( x + 4 )² + ( y - 8 )² = 10

Tags

CCSS.HSG.GPE.A.1

Write the equation of the circle with center C(-1 , -3) and radius = 6

• ( x + 1 )² + ( y + 3 )² = 12

• ( x - 1 )² + ( y + 3 )² = 36

• ( x - 1 )² + ( y - 3 )² = 36

• ( x + 1 )² + ( y + 3 )² = 36

Tags

CCSS.HSG.GPE.A.1

The equation of the circle is ( x - 8 )² + ( y + 3 )² = 9 . The center is

• ( 8, -3 )

• ( 8, 3 )

• ( -8, -3 )

• ( -8, 3 )

Tags

CCSS.HSG.GPE.A.1

Which equation has a center (0, 0) and a radius of 3?

• x² + y² = 3

• (x + 1)² + (y - 1)² = 9

• (x + 3)² + (y - 3)² = 0

• x² + y² = 9

Tags

CCSS.HSG.GPE.A.1