Is {(-2,1),(-1,2),(0,3),(1,4) } a function?

1 answer:

5 0

Think of it this way, a function must pass the vertical line test. There may not be 2 outputs for one input for example (0, 1) (0, 2) However, you can have something like this (1, 0) (2, 0)

This is indeed a function as it meets those criterion. There are no two outputs for one input.

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