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Can someone help me with this question please ? Thank you.

Can someone help me with this question please ? Thank you.-example-1
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User Lamorak
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1 Answer

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No it is because:
You use the vertical line test. If you can draw a vertical line through the graph
and intersects it only once, it is a fuction, if the line crosses the graphs more then once it is not

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User Ejunker
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