Algebra

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Moderate

Formula for Non-Consecutive Terms

ALGEBR-FMSEC4

Find the formula for the arithmetic sequence with the first term $a_{1}=-3.1$ and the sixth term $a_{6}=6.4$ .

A

$a_{n}=-3.1+6.4(n-1)$

B

$a_{n}=-3.1+1.9(n-1)$

C

$a_{n}=6.4 + 1.9(n-1)$

D

$a_{n}=-3.1+1.9n$

E

none of the above