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Introduction to Relation

Determine whe...

Question

Determine whether the following relation in the table from set $X$ to set $Y$ describes a function or not.
$X : {- 3, 4, 2, - 1} Y : {0, 4, 7, 10}$

Input (x) Output (y)

-3 0

-1 4

2 7

4 10

Here $x \in X & y \in Y$

It represent a function

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Does not represent function

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Solution

The correct option is A It represent a function
Given relation is a function because every input or every element of set $X$ has exactly one output.

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