Question

The explicit formula for the nth term of an arithmetic sequence is an = a1 + (n - 1) • d. What is the simple formula corresponding to the explicit formula if the first term of the sequence is -10 and the difference between terms in the sequence is 4?

A. 4n + 14
B. 4n - 6
C. 4n + 10
D. 4n - 10
E. 4n - 14

Answer 1

did you try enter in the information into the form given above

Answer 2

that is you are given a1 and d

Answer 3

just plug them in

Answer 4

\[a_n=a_1+(n-1)d \\ \text{ you are given } d=4 \text{ and } a_1=-10\]

Answer 5

plug in and simplify

Answer 6

thx