# Math Help - Help finding function rule

1. ## Help finding function rule

I need help finding the function rule for this problem if anyone could help it would be much appreciated Heres the problem: N--- 1 2 3 4 5 6
F(n) 1 -1 -4 -7 -10 -13

2. I did a scatterplot of your data. Although not linear, it was pretty close. Linear regression analysis put the line of best fit to:

$y = -2.85714x + 4\frac{1}{3}$

The correlation coefficient (r) = .9983374885, so that's pretty close to 1.

Does this help?