| 1 |
The equation x<sup>2</sup> + y<sup>2</sup> + 2x + 3y = 10 represents a: |
- A. A pair of lines
- B. Circle
- C. Ellipse
- D. Hyperbola
|
| 2 |
In equation of circle, coefficient of each of x<sup>2</sup> and y<sup>2</sup> are: |
- A. Not equal
- B. Opposite in signs
- C. Equal
- D. None of these
|
| 3 |
The axis of the parabola x<sup>2</sup> = 4ay is: |
- A. x = 0
- B. x = -a
- C. y = 0
- D. y = -a
|
| 4 |
If r is the radius of the circle and its center is at origin, then equation of circle is: |
- A. x<sup>2</sup> + y<sup>2</sup> = a<sup>2</sup>
- B. x<sup>2</sup> + y<sup>2</sup> = r<sup>2</sup>
- C. x<sup>2</sup> - y<sup>2</sup> = a<sup>2</sup>
- D. x<sup>2</sup> - y<sup>2</sup> = r<sup>2</sup>
|
| 5 |
The axis of the parabola y<sup>2</sup> = -4ax is: |
- A. x = a
- B. x = 0
- C. y = a
- D. y = 0
|
| 6 |
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
|
| 7 |
If the focus lies on the y - axis with coordinates F(0, a) and directrix of the parabola is y = -a, then the equation of parabola is: |
- A. x<sup>2</sup> = 4ay
- B. -x<sup>2</sup>= 4ay
- C. -y<sup>2</sup>= 4ax
- D. y<sup>2</sup>= 4ax
|
| 8 |
A line that touches the curve without cutting through it is called: |
- A. Straight line
- B. Tangent line
- C. Normal line
- D. Vertical line
|
| 9 |
A line segment whose end points lie on the circle is called a __________ of the circle. |
- A. Radius
- B. Chord
- C. Diameter
- D. None of these
|
| 10 |
A line perpendicular to a radial chord of a circle at the end-point (which lies on the circle) is a: |
- A. Secant
- B. Diameter
- C. Chord
- D. Tangent
|