Question

Does the data in the table represent a direct variation or an inverse variation? Write an equation to model the data in the table.

Answer 1

It looks direct to me because as x increases, y increases. There appears to be a constant rate of change in that 6/9 = 8/12 = 12/18 = 20/30 = 2/3. (Please check that.)

Answer 2

If that ^^ is the case, then the line would be: y - 9 = (2/3) (x - 6). You may want to write that in y = mx + b form.