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If f(x)=3x and its domain is A={0,1,2}, which of the following is the graph of the function defined on A?

Answer and explanation

Correct answer: {(0,0),(1,3),(2,6)}

The graph of a function consists of ordered pairs of the form (x,f(x)). Here, f(0)=0, f(1)=3, and f(2)=6, so the graph is {(0,0),(1,3),(2,6)}. In option C, the components of the ordered pairs are reversed. Exam tip: evaluate the function at every domain element and write each result as (x,f(x)).

Related tags

FunctionsRelationsDomainGraphsOrdered-PairsGraphs Of Standard FunctionsRelations And FunctionsMathematics

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