Sequence Geometric or Arithmetic Constant Ratio/Difference

-2 4 10 16 22 Arithmetic 6

Recursive Function
f (1) = -2
f (x) = f (x - 1) + 6

What would the explicit function be? I understand the rest just not this it is to confusing.

2 answers

The constant difference is obviously 6. So, you expect something close to f(n) = 6n.
6*1 = 6, but f(1) = -2, which is 6-8
So, f(n) = 6n-8
WOW that was easier than I thought thanks oobleck! Happy New Year!