| 1 |
If equation of circle is (x - h)<sup>2</sup> + (y - k)<sup>2</sup> = r<sup>2</sup>, then center of a circle: |
- A. (-h, -k)
- B. (h, k)
- C. (-h, k)
- D. (h, -k)
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| 2 |
The vertex of the parabola y<sup>2</sup> = 4ax is: |
- A. (-a, 0)
- B. (a, 0)
- C. (0, -a)
- D. (0, 0)
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| 3 |
The fixed point of the conic is called: |
- A. Directrix
- B. Vertex
- C. Focus
- D. None of these
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| 4 |
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| 5 |
The condition for the line y = mx + c to be a tangent to the circle x<sup>2</sup> + y<sup>2</sup> = a<sup>2</sup> is c = _____________: |
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| 6 |
The directrix of the parabola x<sup>2</sup> = 4ay is: |
- A. x = a
- B. x = -a
- C. y = a
- D. y = -a
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| 7 |
The center of circle (x+3)<sup>2</sup> + (y-2)<sup>2</sup> = 16 equals: |
- A. (-3, 2)
- B. (3, -2)
- C. (3, 2)
- D. (-3, -2)
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| 8 |
The curves obtained by cutting a __________ double right circular cone by a _______ are called conics: |
- A. Straight line
- B. Plane
- C. Curve
- D. None of these
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| 9 |
The point where the axis meets the parabola is called ________ of the parabola: |
- A. Directrix
- B. Vertex
- C. Focus
- D. Eccentricity
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| 10 |
The radius of circle x<sup>2</sup> + y<sup>2</sup> + ax + by + c = 0 is: |
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