Equations of Circles

• (9, -3); r = 7

• (9, 3); r = 7

• (9, -3); r = 49

• (-9, -3); r = 7

Tags

CCSS.HSG.GPE.A.1

• (-1, -2); r = 10

• (1, 2); r = 10

Tags

CCSS.HSG.GPE.A.1

What is the equation for this circle?

• (x+1)²+(y+1)²=9

• x²+y²=9

• x²+y²=6

• x²+y²=3

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 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 equation matches the circle on the graph?

• (x-3)²+(y-4)²=16

• (x-5)²+(y-2)²=20

• (x+3)²+(y+4)²=16

• (x-9)²+(y-16)²=32

Tags

CCSS.HSG.GPE.A.1

Which equation matches the circle on the graph?

• (x+2)²+(y+5)²=9

• (x+10)²+(y+5)²=9

• (x+5)²+(y+10)²=81

• (x+5)²+(y+10)²=9

Tags

CCSS.HSG.GPE.A.1

Match the following:

• center = (3,-4), radius = 5

• (x+5)² + (y-2)² = 36

• center = (0,0), radius = 4

• x² + y² = 16

• center = (1,-6), radius = 7

• (x+4)² + (y-7)² = 64

• center = (-5,2), radius = 6

• (x-3)² + (y+4)² = 25

• center = (-4,7), radius = 8

• (x-1)² + (y+6)² = 49

Tags

CCSS.HSG.GPE.A.1

Plot the center of the circle with the following equation:

(x-2)² + (y+3)² = 25

Tags

CCSS.HSG.GPE.A.1

A circle has the following equation (x+11)² + (y-15)² = 64. The center of the circle is (a)   ​ ​

• (-11, 15)
• (11, -15)
• 64
• 8

Tags

CCSS.HSG.GPE.A.1