Answer:
First we need to set up a table, i'll make up some numbers.
y= 2,4,6,8
x=4,8,16,20
x is always over y.
the y values go up 2 each time, and the x values go up 4 each time.
so your format would be y=mx+b
your answer from my example would be y=2x+4.
also i forgot about the
your answer for that would be the number it counts up or down by each time, and our answer for this would be
I hope this helps!