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- 1. Multiple Choice
What is the standard equation of a circle?
(x-k)2 + (y-h)2 = r2
(x+h)2 + (y+k)2 = r2
(x-h)2 + (y-k)2 = r2
(k-x)2 + (h-y)2 = r2
- 2. Multiple Choice
What does (h,k) standard for in the standard circle equation?
(h,k) is the center of the circle
(h,k) is a point on the circle.
(h,k) is a point that we guess and find
(h,k) is the distance of the circle
- 3. Multiple Choice
What does "h" stand for in (h,k)?
h is the radius of the circle
h is the distance of the circle
h is the y in the coordinate point
h is the x in the coordinate point
- 4. Multiple Choice
What does the "k" in (h,k) stand for?
k is the y coordinate point in the center of the circle
k is the x coodinate point in the center of the circle
k is the radius of the circle
k is the distance of the circle
- 5. Multiple Choice
What does the r in the standard equation stand for?
r is the distance of the circle
r is the radius of the circle
r is the x coordinate of the center of the circle
r is the y coordinate of the center of the circle
- 6. Multiple Choice
What is the center and the radius of the circle with equation, (x-4)2 + (y-2)2 = 25
Center is (5,2) and radius is 4.
Center is (2,5) and radius is 4
Center is (2,4) and radius is 5
Center is (4, 2) and radius is 5
- 7. Multiple Choice
What is the center and radius of a circle with the equation, (x-1)2 + (y-3)2 = 4
Center is (1,3) and radius is 2
Center is (3,1) and radius is 2
Center is (3,2) and radius is 1
Center is (2,3) and radius is 1
- 8. Multiple Choice
What is the center and radius of a circle with an equation (x+5)2 + (y-1)2 = 64
Center is (5,1) and radius is 8
Center is (-5, 1) and radius is 8
Center is (-1, 5) and radius is 8
Center is (-5,-1) and radius is 8
- 9. Multiple Choice
What is the center and radius of a circle with an equation (x+2)2 + (y+4)2 = 1
Center is (2,4) and radius is 1
Center is (2,-4) and radius is 1
Center is (-2, 4) and radius is 1
Center is (-2, -4) and radius is 1
- 10. Multiple Choice
What is the circle equation, given the center is (4,1) and the radius is 3?
(x-4)2 + (y-1)2 = 9
(x+4)2 + (y+1)2 = 9
(x+1)2 + (y+4)2 = 9
(x-1)2 + (y-4)2 = 9
- 11. Multiple Choice
What is the equation of a circle, given the center is (-2, 3) and the radius is 4?
(x+2)2 + (y-3)2 = 2
(x-2)2 + (y+3)2 = 16
(x+2)2 + (y-3)2 = 16
(x-2)2 + (y-3)2 = 2
- 12. Multiple Choice
What is the equation of a circle given the center is (-5,7) with a radius of 5?
(x-5)2 + (y+7)2 = 25
(x+5)2 + (y-7)2 = 25
(x-5)2 + (y-7)2 = 25
(x+5)2 + (y+7)2 = 25
- 13. Multiple Choice
Which equation matches the circle on the graph?
(x-2)2+(y+3)2=81
(x+3)2+(y-2)2=9
(x-2)2+(y+3)2=9
(x+3)2+(y-2)2=3
- 14. Multiple Choice
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
- 15. Multiple Choice
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
- 16. Multiple Choice
Which equation matches the circle on the graph?
(x+1)2+(y+3)2=4
(x-3)2+(y-1)2=4
(x+3)2+(y+1)2=4
(x+5)2+(y+1)2=3
- 17. Multiple Choice
Which equation matches the circle on the graph?
(x+2)2+y2=16
(x+2)2+x2=16
(x+4)2+y2=4
(x+20)2+y2=12
- 18. Multiple Choice
Which equation matches the circle on the graph?
x2+y2=16
x2+y2=32
2x2+5y2=256
24x2+999y2=16
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