Question

What is the function for the arithmetic sequence 2,7,12,17,22

Answer 1

Hey there,

                                       Your question states: 

                       What is the function for the arithmetic sequence                                                                 
                                             (2,7,12,17,22)

By using the formula $[tex] a_{n} \ a_{1} + d(n-1) \ to \ get \ the \ sequence$

The $mean$ of the arithmetic sequence would be $\boxed{12}$

And by identifying the sequence by using the formula, it would be . . .

$\boxed{a_{n} =5n-3}$

Hope this helps.
~Jurgen

Answer 2

The common difference, d, is 5 and the starting value, a, is 2.
Filling this in the form of $x_n=a+d(n-1)$

you get

$x_n = 2+5(n-1)$