Decide whether the relation defines a function.
-$$x = y ^ { 2 }$$
A) Function
B) Not a function

Name: Decide whether the relation defines a function. -\[x = y ^ { 2 }\] A) Function B) Not a function
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Question

Quizplus · Accepted Answer

A relation is a function if for every input there is exactly one output. The given relation $x = y^2$ does not define a function because for a given value of $x$, there can be two different values of $y$ (one positive and one negative) that satisfy the equation.

Decide Whether the Relation Defines a Function x=y2x = y ^ { 2 }x=y2

Decide Whether the Relation Defines a Function $x = y ^ { 2 }$