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X=15 is this a function how do you do it

User JP Alioto
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Answer:

no

Explanation:

The graph of this equation on an x-y plane is a vertical line. The input value x=15 maps to an infinite number of outputs (y-values). For a relation to be a function, each input can only map to one output.

x = 15 is not a function

User Vvg
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