Question # 1

The graph of the the parabola x² = 4ay lies in quadrant:

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I and II

III and IV

II and III

I and III

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

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(a, 0)

(0, 0)

(0, -a)

(0, a)

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

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Normal

Bisects

Equal to

None of these

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

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x-axis

major axis

y-axis

minor axis

The focus of the parabola x² = 4ay:

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(0, a)

(-a , 0)

(0, -a)

(a, 0)

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 parabola y² = 4ax lies in quadrants:

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I and II

III and IV

II and III

I and IV

The number e denotes the _______ of the conic:

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Directrix

Vertex

Focus

Eccentricity

The focus of the parabola y²=-4ax is:

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(-a , 0)

(0, a)

(0, -a)

(a, 0)

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 axis of the parabola x² = 4ay is:

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x = 0

x = -a

y = 0

y = -a

The radius of circle x² + y² + 2gx + 2fy + c = 0 is:

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The curves obtained by cutting a __________ double right circular cone by a _______ are called conics:

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Straight line

Plane

Curve

None of these

The center of circle (x+3)² + (y-2)² = 16 equals:

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(-3, 2)

(3, -2)

(3, 2)

(-3, -2)

the focal chord perpendicular to the axis of the parabola is called _____________ of the parabola:

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Directrix

Latus rectum

Focus

Focal chord

If the focus lies on the x-axis with coordinates F(a, 0) and directrix of the parabola is = - a then the equation of parabola is:

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x² = 4ay

y²= 4ax

-x²= 4ay

-y²= 4ax

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0

4

7

The conic is a parabola, if:

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e = 1

e > 1

0 < e < 1

e = 0

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Ellipse

Parabola

Hyperbola

Circle

The two parts of a right circular cones are called:

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Nappes

Apex of the cone

Generator

Vertex

The ratio between the measure of the radial segment and the diameter of a circle is:

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2 : 1

4 : 3

1 : 2

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