Basic Equations of a 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

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

In the equation (x+2)²+(y+3)²=49, the center of the circle is at....

• (2, 3)
• (3, 2)
• (-3, -2)
• (-2, -3)

Tags

CCSS.HSG.GPE.A.1

In the equation (x-4)²+(x-3)²=25, the radius is

• 4
• 3
• 5
• 25

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 equation of the circle, with centre (-2,-7) and radius 3 units?

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

Tags

CCSS.HSG.GPE.A.1

What is the equation of the circle, with center (-4,5) and radius 6 units?

• (x - 4)² + (y + 5)² = 6
• (x - 4)² + (y + 5)² = 36
• (x + 4)² + (y - 5)² = 6
• (x + 4)² + (y - 5)² = 36

Tags

CCSS.HSG.GPE.A.1