Ok it’s pretty easy!
Under the X, that’s what we call a input! And I’ll take the equation from number 11
(X-5)
Under the X we see numbers like (-4, 8, 1, 3, 4)
What we do here is we grab our equation (x-5) and we exchanged “X” for one of the numbers, I’ll use the first example! Which is (-4)
So our equation will look like this
(-4 - 5) and what you do know is solve it which will give you the answer of “-9”
So now what you do is put negative nine as the y for that column and bam!
In resume you plug in the numbers under x for the x in the equation then the results will be your output or in other words you “y”
