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- 1. Multiple Choice
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
- 2. Multiple Choice
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
- 3. Multiple Choice
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
- 4. Multiple Choice
What is the center of the circle with this equation is (x+2)²+(y-4)²=41?
(-2,41)
(-2,4)
(2,-4)
(2,41)
- 5. Multiple Choice
What is the radius of the circle
(x+7)²+(y-2)²=144?
7
12
24
144
- 6. Multiple Choice
What is the equation for this circle?
(x+1)2+(y+1)2=9
x2+y2=9
x2+y2=6
x2+y2=3
- 7. Multiple Choice
What is the radius of the circle with this equation of (x-5)²+(y+7)²=8?
4
8
4√2
2√2
- 8. Multiple Choice
The diameter of a circle has length 12. The center is at (-5, 2). Give the equation of the circle.
(x - 2)2 + (y + 5)2 = 36
(x - 5)2 + (y + 2)2 = 6
(x + 5)2 + (y - 2)2 = 36
(x + 2)2 + (y - 5)2 = 6
- 9. Multiple Choice
Find the center of the circle if the endpoints of a diameter of the circle are at (-12, -7) and (3, 5)
(-9/2, -1)
(-15/2, -6)
(9/2, 1)
(15/2, 6)
- 10. Multiple ChoiceWhat is the equation of the circle with the given information?ABCD
- 11. 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
- 12. 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 the radius of the circle
(h,k) is the diameter of the circle
- 13. Multiple Choice
In the circle represented by the equation (x-4)2+(y-3)2=25, the diameter is
10
3
5
25
- 14. Multiple Choice
In the equation (x+2)2+(y-3)2=4, the diameter of the circle is...
4
2
3
16
- 15. Multiple Choice
Which points lie on the circle represented by the equation (x+2)2 + (y+2)2 = 52
(-2, -2)
(6,4)
(8,8)
(-6, -5)
(-2, -7)
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