Question # 1

The set {E,0}, is closed under (ordinary)

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multiplication

addition

subtraction

division

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Function is a special type of

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relation

ordered pairs

cartesian product

sets

The graph of a constant line is

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vertical line

parabola

circle

horizontal line

If no two elements of ordered pairs of a function from A onto are the same, then it is called.

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Surjective

Injuctive

Bijective

on to

The inverse of a line is

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inverse

Line

quadratic

Circle

N is closed with respect to ordinary

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addition

multiplication

addition and multiplication

division

If no two elements of ordred pair of a function from A into B are equal, then it is called

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surjective

injuctive

bijective

on to

Which of the following diagrams represent bijective function?

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ax+by+c = 0, represent a

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circle

parabola

straight line

quadratic circle

the function y = mx+c is, called linear function, because

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it has only two variables

it has one varible

its graphs is straight line

its graphs is circle

A function from A to B is called on-to function, if its range is

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A

B

A and B

neither A nor B

The extraction of a cube root of a given number is a

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Binary operation

Unary operation

group

multiplicative inverse

The set of first elements of the ordered pairs forming the relation is called is

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Domain

Range

Ordered paris

Relation

arb mean

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a is related to b

b is related to a

a is reciprocal of b

a is not related to b

Which of the following diagrams represent into function?

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bijective function

into function

onto function

surjective

The set of first elements of the ordered pairs forming the relation is called its

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domain

range

ordered paris

relation

The identity function is

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surjective

injuctive

bijective

into

The set of second elements of the ordered pairs forming a relation called a

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Domain

Range

Function

Relation

If range of a function f is B, then the function is

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surjective

injuctive

bijective

into

If no two elements of ordered pair of a functions from A into B are equal, then it is called.

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Surjective

Injuctive

Bijective

Onto

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injuctive as well as surjective

both onto and into

one - one and into

only (1 - 1)

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The function denoted by 1/f called the

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Reciprocal function

Inverse function

Constant function

Reverse function

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Mathematics ECAT Pre Engineering Chapter 4 Functions and Groups Online Test MCQs With Answers

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