| 1 |
y<sup>2</sup> = 4ax, is the standard equation of the: |
- A. Ellipse
- B. Parabola
- C. Hyperbola
- D. None of these
|
| 2 |
The graph of the parabola y<sup>2</sup>= -4ax is symmetric about: |
- A. x-axis
- B. y = x
- C. y-axis
- D. None of these
|
| 3 |
The equ. of directrix of the parabola y<sup>2</sup> = -4ax is: |
- A. x = a
- B. x = - a
- C. y = a
- D. y = -a
|
| 4 |
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 = _____________: |
|
| 5 |
The number e denotes the _________ of the conic: |
- A. Directrix
- B. Vertex
- C. Focus
- D. Eccentricity
|
| 6 |
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
|
| 7 |
If r is the radius of any circle and C its center, then any point P(x<sub>1</sub>, y<sub>1</sub>) lies on the circle only if: |
- A. |CP| < r
- B. |CP| > r
- C. |CP| = r
- D. None of these
|
| 8 |
If the cutting plane is parallel to the axis of the cone and intersects both of its nappes, then the section a / an: |
- A. Parabola
- B. Hyperbola
- C. Ellipse
- D. None of these
|
| 9 |
The length of the latus rectum of the parabola y<sup>2</sup> = 4ax is: |
- A. a
- B. 4a
- C. 2a
- D. None of these
|
| 10 |
A line segment joining two distinct points on a parabola is called a ___________ of the parabola: |
- A. Chord
- B. Vertex
- C. Focus
- D. Directrix
|
