1 |
If the equation of the parabola x<sup>2</sup> = 4ay, then opening of the parabola is upward of the: |
- A. x-axis
- B. y-axis
- C. Major axis
- D. Minor axis
|
2 |
The center of circle x<sup>2</sup> + y<sup>2</sup> + 2gx + 2fy + c = 0 is: |
- A. (-g, -f)
- B. (-f, -g)
- C. (0, 0)
- D. (g, f)
|
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 axis of the parabola x<sup>2</sup> = 4ay is: |
- A. x = 0
- B. x = -a
- C. y = 0
- D. y = -a
|
5 |
If the cone is cut by a plane perpendicular to the axis of the cone, then the section is a / an: |
- A. Parabola
- B. Circular cone
- C. Ellipse
- D. Circle
|
6 |
The opening of the parabola x<sup>2</sup>= 16y is to __________ of the x-axis: |
- A. Left
- B. Upward
- C. Right
- D. Downward
|
7 |
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
|
8 |
<div><font color="#000000" face="Times New Roman" size="3">The opening of the parabola y<sup>2</sup> = 4ax is to the ________ of the:</font></div><div></div> |
- A. Left
- B. Upward
- C. Right
- D. Downward
|
9 |
The number e denotes the _______ of the conic: |
- A. Directrix
- B. Vertex
- C. Focus
- D. Eccentricity
|
10 |
The ratio between the measure of the radial segment and the diameter of a circle is: |
- A. 2 : 1
- B. 4 : 3
- C. 1 : 2
- D.
|