Equation of a Circle Practice

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

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

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

Tags

CCSS.HSG.GPE.A.1

The point (-5,6) is on a circle with center (-1,3) write the equation of the circle

• (x+1)² + (y-3)²= 4000

• (x+5)² + (y-6)²= 25

• (x+1)² + (y-3)²= 25

• (x-1)² + (y+3)²= 25

What is the radius of the circle with this equation of (x-5)²+(y+7)²=64?

• 4

• 8

• 32

• 64

What is the equation of this circle?

• (x + 3)² + (y - 1)² = 9
• (x - 3)² + (y + 1)² = 9
• (x - 3)² + (y + 1)² = 3
• (x + 3)² + (y - 1)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

For circle described by the equation (x-3)²+(y-2)²=16, which of the following is not true?

• The circle has a center of (3,2).

• The radius of the circle is 4.

• h=-3

• k=2

What is the center and radius in this image?

• C(-7,3) ; r=3

• C(7,-3) ; r=3

• C(7,-3) ; r=9

• C(-7,3) ; r=9

Tags

CCSS.HSG.GPE.A.1

What is the equation of a circle with center (-13, -16) and point (-10, -16) on its circumference?

• (x+13)²+(x+16)²=9

• (x+10)²+(x+16)²=9

• (x-13)²+(x-16)²=9

• (x-10²+(x+16)²=9

What is the center of the circle with this equation is (x+2)²+(y-4)²=41?

• (2,-5)
• (-2,4)
• (2,-4)
• (-2, -4)

Tags

CCSS.HSG.GPE.A.1