Determine whether the relation represents a function. If it is a function, state the domain and range.
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A) function domain:{20, 45, 70, 95} Range: {4, 9, 14, 19}
B) function domain: {4, 9, 14, 19} range: {20, 45, 70, 95}
C) not a function

Question

Determine whether the relation represents a function. If it is a function, state the domain and range.
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A) function domain:{20, 45, 70, 95} Range: {4, 9, 14, 19} 
B) function domain: {4, 9, 14, 19} range: {20, 45, 70, 95} 
C) not a function

Quizplus · Accepted Answer

This relation represents a function because each input (domain) value is paired with exactly one output (range) value. The domain is {4, 9, 14, 19} and the range is {20, 45, 70, 95}. Option A has the correct range, but the domain is given as the range, so it is not the correct choice. Option C is not a function because there are repeated x-values paired with different y-values.

Determine Whether the Relation Represents a Function