Asked by Kaai97

{(-8,-6),(-5,2),(-8,1),(7,3)}

Is this relation a function?
Answered by Steve
if it is a function, no two pairs have the same first element.

So, ...
Answered by Henry
A function crosses a vertical line only once.
Your relation crosses a vertical line twice:(-8,-6), and (-8,1). The x-coordinate shows twice; that is the clue.

Therefore, it is not a function.

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