Maths-
General
Easy
Question
Rita uses a table to record the ages and heights of the six students he tutors . Is the relation a function ? Explain .
Hint:
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: function.
We have given the two data of Age and Height.
We will convert the given data into points
As (9, 54), (10, 54) , (9, 61) , (8, 45) , (12, 65) , (8 , 50)
Domain:- { 9 , 10 , 8 , 12 }
Co- Domain:- { 54, 61, 45 , 65 , 50 }
From the given data we can analyse that the member in the domain set i.e.8 has two images i.e. 45 and 50 in the co-domain .
We know that in a function one member in the domain set cannot have two images in the co-domain set.
Therefore, the given relation is not a function.
All functions are relations but all relations are not functions.
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