Maths-
General
Easy

Question

Does the relation below shows represent a function ? Explain.
(-2,2)(-7,1) (-3,9)(3,4)(-9,5)(- 6,8)

hintHint:

 An ordered pair is represented as (INPUT, OUTPUT)
A function from set A to the set B is a relation which associates every element of a set A to unique element of set B.

The correct answer is: { 1, 2, 4, 5, 8 ,9}


    We have given the data as
    (-2,2)(-7,1) (-3,9)(3,4)(-9,5)(- 6,8)
    Domain:-  {  -9, -7,-6, -3, -2, 3}
    Co- Domain:- { 1, 2, 4, 5, 8 ,9}
    From the given data we can analyse that each element in the domain input set has exactly one output.
    The members in the domain set has its square as a output in the co-domain set
    Therefore, the given data is a function.

    All functions are relations but all relations are not functions.

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