Question # 1

The vertex of the parabola y² = -4ax is:

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(-a, 0)

(a, 0)

(0, -a)

(0, 0)

Two arcs of two different circles are congruent if:

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The circles are congruent

The corresponding central angles are congruent

Both a and b

None of the above

The axis of the parabola y² = 4ax is:

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x = 0

x = a

y = 0

y = a

The condition for the line y = mx + c to be a tangent to the circle x² + y² = a² is c = _____________:

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The directrix of the parabola x² = 4ay is:

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x = a

x = -a

y = a

y = -a

The focus of the parabola x² = 4ay:

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(0, a)

(-a , 0)

(0, -a)

(a, 0)

The opening of the parabola x²= 16y is to __________ of the x-axis:

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Left

Upward

Right

Downward

Equation of axis of the parabola x² = 4ay is:

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x = 0

x = a

y = 0

y = a

The equ. of directrix of the parabola y² = -4ax is:

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x = a

x = - a

y = a

y = -a

A line perpendicular to a radial chord of a circle at the end-point (which lies on the circle) is a:

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Secant

Diameter

Chord

Tangent

The directrix of the parabola y² = 4ax is:

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x = a

x = -a

y = a

y = - a

Length of tangent from (0,1) to x² + y² + 6x - 3y + 3 = 0

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2

1

4

3

The point where the axis meets the parabola is called ________ of the parabola:

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Directrix

Vertex

Focus

Eccentricity

If equation of circle is (x - h)² + (y - k)² = r², then center of a circle:

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(-h, -k)

(h, k)

(-h, k)

(h, -k)

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

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Straight line

Tangent line

Normal line

Vertical line

A chord passing through the focus of a parabola is called a ________ of the parabola:

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Directrix

Latus rectum

Focus

Focal chord

The conic is an ellipse, if:

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e = 1

e > 1

0 < e < 1

e = 0

The two parts of a right circular cones are called:

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Nappes

Apex of the cone

Generator

Vertex

y² = 4ax, is the standard equation of the:

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Ellipse

Parabola

Hyperbola

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

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a

2b

b

2a

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