Two diagrams, labelled A and B, are shown below - Junior Cycle Mathematics - Question 15 - 2015
Question 15
Two diagrams, labelled A and B, are shown below.
One diagram represents a function; the other does not.
Diagram A Diagram B
State ... show full transcript
Worked Solution & Example Answer:Two diagrams, labelled A and B, are shown below - Junior Cycle Mathematics - Question 15 - 2015
Step 1
State which diagram does not represent a function.
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Answer
Diagram B does not represent a function.
Step 2
Justify your answer.
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Answer
A function relates each item in its domain (left set) to a single item in its range (right set). Diagram B relates the diamond figure on the left to two items on the right instead of just one. In contrast, Diagram A is a function since each item on the left is mapped to one item on the right.
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