This document discusses functions and their properties. It notes that a function can only have one output for each unique input, but then provides an example where the input x=10 has two outputs y=2001 and 2003. Therefore, it concludes that this is not a valid function since there are two outputs for a single input.
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A function can only have one output, y, for each unique input, x.I.pdf
1. A function can only have one output, y, for each unique input, x.
In our case x=10 has two output values y=2001 and 2003.DSo, two output for one input.
It is not a function,
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Solution
A function can only have one output, y, for each unique input, x.
In our case x=10 has two output values y=2001 and 2003.DSo, two output for one input.
It is not a function,
Second question image is not visible