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What type of function is represented by R = {(1,4), (2,4), (3,4)}?

Answer and explanation

Correct answer: Constant function

The governing concept is classification of a function by its output values. A relation is a function here because each input, 1, 2, and 3, has exactly one assigned output. Every one of these inputs maps to the same value, 4. A function that has the same value for every input in its domain is called a constant function and can be written as f(x)=c. Therefore R is a constant function, so option A is correct. It is not an identity function because an identity function must satisfy f(x)=x; here f(1)=4, f(2)=4, and f(3)=4. It is not a non-function because no input has two different images, and it is not empty because three ordered pairs are present.

Related tags

FunctionsConstant-FunctionFunction-TypesMathematicsClass 11Functions As A Special Kind Of RelationRelations And FunctionsClass 11 Mcq

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