Equation of a circle

Write the equation of a circle with center (7, 0) with radius 3. 

• (x - 7)² + y² = 9
• x² + (y -7)² = 9
• (x - 7)² + y² = 3
• x² + (y -7)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

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

• A
• B
• C
• D

Tags

CCSS.HSG.GPE.A.1

What is the equation for this circle?

• (x+1)+(y+1)=9
• x²+y²=9
• x+y=9

Tags

CCSS.HSG.GPE.A.1

What is the center and the radius?

• C(1,5)

  r=64

• C(5,1)

  r=8

• C(-5,-1)

  r=64

• C(-1,-5)

  r=8

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

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