Question # 1

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,b) (c,d) if and only if

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a = b and c =d

a = d and b = c

a = c and b = d

a - b = c - d

The identity function is

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surjective

injuctive

bijective

into

(a,b) = (c,d) if and only if

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a=b and c =d

a = d and b = c

a = c and b = d

a - b = c -d

If A is non-empty set, any subset of A x A is called a relation in

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A

B

∅

r

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

Let A and B be two non-empty sets, then any subset of the cartesian product A x B called a

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Function

Domain

Range

Binary relation

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

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Domain

Range

Function

Relation

Identity element, if it exists, is

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inverse

unique

commutative

associative

A relation a into B in which Domain is not equal to a, is called.

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Into function

on to function

None of these

Surjective

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

Addition is not operation on

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Natural numbers

Even numbers

odd numbers

set of integers

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

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Domain

range

function

relation

Which of the following diagrams represent into function?

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Which of the following represent injuctive function

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

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multiplication

addition

subtraction

division

A relation A into B in which Domain is not equal to A, is called

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into function

onto function

None of these

surjective

Negation of a given number is an example of

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Binary operation

group

unary operation

function

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

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Binary operation

Unary operation

group

multiplicative inverse

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

ax+by+c = 0 , represents a

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Circle

Parabola

Straight line

Quadratic circle

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

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surjective

injuctive

bijective

into

Let A and B be two non-empty sets, then any subset of the cartesian product AxB is called a

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function

domain

range

binary relation

N is closed with respect to ordinary

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addition

multiplication

addition and multiplication

division

The net of cartesian product AxB consists of

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domain

range

binary relation

ordered pair

The group of a constant line is

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Vertical line

Parabola

Circle

Horizontal line

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bijective function

into function

onto function

surjective

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There will be no inverse if the function is

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one -to - one

One to many

onto

into

The set of cartesian product A x B consists of

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Domain

Range

Binary relation

Ordered pair

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ECAT Pre General Science Mathematics Chapter 4 Functions & Groups Online Test MCQs With Answers

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