Question # 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

sec h x = ________

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0

1

-1

The domain of y =√(x^2-9) is

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R

(0 , +∞)

(-∞ , -3 )∪ (3 , +∞)

(0 ,∞)

______________ invented a symbolic way to write the statement "y is a function of x" as y= f(x)

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Leibniz

Newton

Euler

None of these

Point (2,0) lies on trigonometric function f(x)=______;

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sinx

cosx

tanx

secx

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

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11

7

5

2

A rule that assigns to each elements x in X a unique element y in Y is called a ____________

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domain

range

function

none of these

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[0,1[

[0, 1]

]0, 1[

None of these

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if the value of the sphere, v =4/3πr²^, then the which of the following statement is true?

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r is the function of v

v is the function ofπ

π is independent variable

None of these

The domain of the function x/x² -4 is given by

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R

R + 2

[R - (+2)

R-4

f(x) = C is

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identity function

constant function

linear function

quadratic function

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0

1

-1

If f(x) = x³- 2x²+ 4x -1 then f(2) is

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7

-16

16

-9

Domain of y = scs x is

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All real numbers except π/2 + n*π

R

All negative integers

None of these

f(x) = 2x²+ 3x + 5 is a

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trigonometric function

algebraic function

exponential function

logarithmic function

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0

1

1/2

If a variable y dependents on a variable x in such a way that each value of x determines exactly one value of y, then we say that

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x is function of y

y is a function of x

y is independent variable

x is real valued function

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-2

-1

1

2

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quadratic function

constant function

linear function

exponential function

A function from A to B is denoted by

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f: A→ B

f: B → A

f: → A :B

f → A→ B

If f(x) = x²then f(2) is

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-2

2

4

-4

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images

pre-images

constants

none of these

A function of the form p(x)/Q(x) is called:

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Rational function

Logarithmic function

Exponential function

Hyperbolic function

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One-one but not onto

One-one and onto

Onto but not one-one

Neither one-one nor onto

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The range of the function f : x→ y is defined by

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{x| y = f (x) ∀x∈ X ∧y∈y}

{(x,y) |y = f (x)∀x∈ X}

{y|y = f (x) ∀x∈ X ∧y∈y}

Y

The range of inequality x + 2 > 4 is

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(-1, 2)

(-2, 2)

(1,∞)

None

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0

1

2

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