Which of the following relations is a function?

Mathematics

1 answer:

djyliett [7]2 years ago

7 0

Answer & Step-by-step explanation:

The definition of a function is that every input, x, must have only one output, y. So, for every x value, there should be only one y value with it. If you have two x values that are the same and have different y values, then that is not a function. The only answer that showcases this is letter D.

1 → 2

2 → 3

3 → 4

4 → 5

In this function, every input has one output and each x value is different.

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