Last one. Go me.
Chapter 13 -1
Sequences:
Arithmetic = A sequence where you're adding the same number in a pattern.
Geometric = Same thing just with multiplying.
ex. 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21....
That would be Arithmetic.
ex. 1, 3, 9, 27, 81....
That would be Geometric.
Anyway, formulas for finding the Nth term:
Arith. = tn= t1+ (n-1)d
Geo. = tn = t1 x r^n-1
ex. 7, 10, 13, 16...
It's arithmetic, so use the arith. formula.
7 + 3n - 3
= 3n + 4
Finally done with this. Time to get some sleep.
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