Question # 1

If the function y=2x -3, what is the preimage of 11?

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11

7

5

2

The domain the function : f(x) = x² is given by

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R

Set of all non-negative Real numbers

R^-1

None of these

The domain of y =√(x^2-9) is

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R

(0 , +∞)

(-∞ , -3 )∪ (3 , +∞)

(0 ,∞)

If f(x) = x²then f(0) is

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0

1

2

none of these

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sin h x

cos h x

tan h x

cot h x

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-1

1

2

-2

tan h x = _________

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f(x) = sin x + cos²x is

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trigonometric function

algebraic function

exponential function

logarithmic function

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0

1

-1

none of these

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images

pre-images

constants

none of these

If a tangent line touches the function y = f (x) in more than one point then y = f (x) is

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Periodic

Surjective

Bijective

Injective

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0

1

-1

none of these

The range of inequality x + 2 > 4 is

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(-1, 2)

(-2, 2)

(1,∞)

None

If f(x) = -x³then f(-2) is

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-2

-4

-8

8

If f(x) = tan x then f(0) is

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0

1

1/2

A rule or correspondence that assigns to each element x in X a unique element y in Y is called a function from

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X to X

X to Y

Y to X

none of these

If f(x) = -x²then f(-2) is

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-2

2

-4

4

If y is an image of x under the function f, then we write

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y = f(x)

x = f(y)

y = x

none of these

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0

1

-1

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

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Relation

Cartesian product

Function

Graph

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sin h x

cos h x

sec h x

cosec h x

f(x) = 1 is

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identity function

constant function

linear function

quadratic function

If f(x) = x³- 2x²+ 4x -1, then f(-2) = ?

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0

-25

5

45

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0

1

1/2

If f(x) = x²then f(-2) is

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-2

2

4

-4

f(x) = x³is:

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an odd function

an even function

an implicit function

a quadratic funtion

A function in which the variable appears as exponent is called:

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An identity function

A logarithmic function

an exponential function

A rational function

f(x) = ax + b will be an identity function if

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a = 1 , b = 1

a = 1 , b = 0

f(x) = x is

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trigonometric function

exponential function

quadratic function

identify function

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