Question # 1

A circle is of radius 5 cm, the distance of a chord 8 cm long from its center is:

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4 cm

3cm

2.5cm

3.4cm

The axis of the parabola x² = -4ay is:

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x = a

x = 0

y = a

y = 0

In equation of circle, coefficient of each of x² and y² are:

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Not equal

Opposite in signs

Equal

None of these

A line segment whose end points lie on the circle is called a __________ of the circle.

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Radius

Chord

Diameter

None of these

If a circle and a line intersect in two points, then the line is called:

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A chord

A secant

A diameter

None of these

The radius of circle x² + y² + ax + by + c = 0 is:

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None

The directrix of the parabola x² = -4ay is:

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x = a

x = -a

y = a

y = -a

The vertex of the parabola x² = -4ay is:

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(a, 0)

(0, 0)

(0, -a)

(0, a)

A chord containing the center of the circle is called ______ of the circle:

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Diameter

Chord

Radius

None of these

Perpendicular dropped from the center of a circle on a chord _______ the chord:

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Normal

Bisects

Equal to

None of these

If the radius of a circle is zero, then the circle is called a / an:

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Circle

Circular cone

Ellipse

Point circle

The directrix of the parabola y² = 4ax is:

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x = a

x = -a

y = a

y = - a

Measure of the central angle of a minor arc is ____ the measure of the angle subtended in the corresponding major arc.

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Equal

Double

Not equal to

Triple

If the equation of the parabola is y² = - 4ax, then opening of the parabola is to the ______ of the y-axis:

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Left

Upward

Right

Downward

In the case of rotation of axes which formula is true:

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The vertex of parabola (x - 1)² = 8 (y + 2) is:

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(1, -2)

(0, 1)

(-1, -2)

(1, 2)

The axis of the parabola y² = 4ax is:

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x = 0

x = a

y = 0

y = a

A line that touches the curve without cutting through it is called:

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Straight line

Tangent line

Normal line

Vertical line

The graph of the parabola x² = -4ay is symmetric about:

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x-axis

major axis

y-axis

minor axis

The opening of the parabola y² = 4ax is to the ________ of the:

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Left

Upward

Right

Downward

The distance between the center of a circle and any point of the circle is called:

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Tangents

Secant

Diameter

Radius

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