Originally Posted by

**Liberius** Hey, could anyone tell me what is the rule of that function?

Here are the numbers found in the table (numbers with periods are approximated by the original problem):

(x.y)

(0.100)

(1.100)

(2.90)

(3.85,86)

(4.82,68)

(6.77,63)

(8.73,54)

I already tried multiple times with a lot of different forms of fuctions but I didn't succeed into getting the right numbers out, even if I did get close with a square root function.

The first three values are not clear.

Are these the numbers?:

Code:

0.00, 100
1.00, 100
2.00, 90
3.85, 86
4.82, 68
6.77, 63
8.73, 54

using this values Code:

3.85, 86
4.82, 68
6.77, 63
8.73, 54

this results:

$\displaystyle

-1.23x^3 + 24.44x^2 -160.95x + 413.43

$

.