Question # 1

The focus of the parabola x² = 4ay:

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(0, a)

(-a , 0)

(0, -a)

(a, 0)

-4 < y < 4 is the solution of the following:

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y = 5

y = 3

y = -4

y = 4

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tan x

cot x

- tan x

- cot x

A unit vector is defined as a vector whose magnitude is:

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0

2

1

4

If the inclination of a line lies between ]90°, 180°[, then the slope of line is :

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Positive

Negative

Zero

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ax + by + c = 0, will represent equation of straight line parallel y-axis if:

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a = 0

b = 0

c = 0

a = 0, c = 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

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28

29

The equation x² + y² + 2x + 3y = 10 represents a:

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A pair of lines

Circle

Ellipse

Hyperbola

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Constant

Implicit

Explicit

Inverse

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

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x = a

x = 0

y = a

y = 0

If a straight line is perpendicular to y-axis, then its slope is:

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1

-1

0

undefined

There are _______ ordered pairs that satisfy the inequality ax + by > c.

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Finitely many

Two

Infinitely many

Four

If the equation of the parabola is x² = 4ay, then opening of the parabola is to _______ of the x-axis:

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Left

Upward

Right

Downward

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The equation to the straight line which passes through the point (2, 9) and makes an angle of 45° with x-axis is:

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x + y + 7 = 0

x - y + 7 = 0

y - x + 7 = 0

None of these

If the degree of a polynomial function is ------------, then it is called a linear function:

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0

1

2

3

Every relation, which can be represented by a linear equation in two variables, represents a:

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Graph

Function

Cartesian product

Relation

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domain

range

lower limit

upper limit

The vertex of the parabola x² = 4ay is:

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(-a, 0)

(0, a)

(0, -a)

(0, 0)

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