Functions or Not a Function? Explain?

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!! :)

Abit confused about what you mean, but i think you might be referring to slope intercept form: y = mx + bin that case b, or the y intercept is already given.(0,-1)find the slope by using the formulay2 - y1/x2 - x1the final slope will be 4/2, equivalent to 2.now your equation should look like thisy = 4/2x -1sorry if this didn’t you out!