This week in math 10, we learned about arithmetic sequences.

The point of using arithmetic sequences is to find the $t_n$ and to find the $t_1$.

the $t_n$ is used to find the general form/ the equation that we use to find other terms in the sequence. for example, if we have numbers 16,20,24… the formula can be used to find the 25th term easily with algebra, instead counting each term one by one.

first we need to find the common difference. The common difference between numbers is how much the number adds by or subtracts by from term to term. The common difference is represented as (d). We use the formula down below find the Term N.

in our sequence from before (16, 20, 24…), our first term is 16, and our common difference (d) is +4.