Question

x y
0 4.20
1 6.72
2 10.75
3 17.20

what is the formula?

Answer 1

anyone?

Answer 2

Is this all the information you have?

Answer 3

yep

Answer 4

Than I'm sorry, short of drawing the graph and making an equation from the graph.. Which doesn't really seem like the point..

Answer 5

can u answer my new one?

Answer 6

or explain how you solved this one?

Answer 7

im not sure if its a parabola are an exponential ,

Answer 8

exponential

Answer 9

I'd say exponential as well but should the difference of the difference between each step be equal in an exponential equation..

Answer 10

it is equal. .625

Answer 11

How did you get to 0,625?

Answer 12

4.2/6.72

Answer 13

6.72/10.75

Answer 14

That's not what I mean with the difference of the difference but I'm not sure if that was needed for the exponential funtion.. I tend to mix them up.. Anyway, I don't see any nice formula either, however the fact that deviding each point by the previous leads to equal values seems like something to work with..