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Mathematics
8th -
10thgrade
Circles in the Coordinate Plane (Lesson6)
10 questions
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- 1. Multiple ChoiceWrite the equation of a circle with center (7, 0) with radius 3.(x - 7)2 + y2 = 9x2 + (y -7)2 = 9(x - 7)2 + y2 = 3x2 + (y -7)2 = 3
- 2. Multiple ChoiceWhat 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 unitsCenter (4,3)
Radius = 25 unitsCenter (-4,-3)
Radius = 25 unitsCenter (-4,-3)
Radius = 5 units - 3. Multiple ChoiceWrite the standard equation of the circle with the given center and radius; center (0,0) and radius: 3x2+y2=4x2+y2=81x2+y2=9
- 4. Multiple ChoiceWhat is the center of the circle with equation x2 + y2 = 1?(1, 1)(0, 0)not enough information
- 5. Multiple ChoiceSee PictureABC
- 6. Multiple ChoiceSee PictureABCD
- 7. Multiple ChoiceIn the equation
(x-3)2+(y-2)2=16, the center of the circle is...(3,2)(-3, -2)(-2, -3)(2, 3) - 8. Multiple ChoiceWhat 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
- 9. 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 = 144
(x + 5)2 + (y - 2)2 = 36
(x + 2)2 + (y - 5)2 = 6
- 10. Multiple Choice
The point (-3, 4) is on a circle with center (1, -1). Write the standard equation of the circle.
(x + 1)2 + (y - 1)2 = 41
(x - 1)2 + (y + 1)2 = 16
(x + 1)2 + (y - 1)2 = 1681
(x - 1)2 + (y + 1)2 = 41
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