Question

Functions or Not a Function? Explain?

Answer 1

function

Explanation:

To be a function, each value of the x-coordinate can be used only once. In other words, all x-coordinates must be different.

Here, the x-coordinates are all different, so it is a function.

Answer 2

Not a function.

The x table increases by a constant amount, 1. While the y table increases by different amounts, making it not a function.

also if you graphed this, it would not be a line, making it not a function.

Hope this helped!! :)