Question

help!!!!

Answer 1

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 5?

A. 5n - 15
B. 5n - 10
C. 5n + 15
D. 5n + 10
E. 5n - 5

Answer 2

the good thing is they already gave you the formula so just plugin the numbers
letter `d` represent difference(common difference)
and the a_1= first term

Answer 3

okay so how would i plug it in ?

Answer 4

hello ?

Answer 5

difference is d which is 5
first term of the sequence is -10
so substitute d for 5 and a_1 for -10

Answer 6

here is an example if i have
5x+9 and x=3
thats how i would substitute x for 3\[\large\rm 5\color{ReD}{x}+9\]\[\large\rm 5\color{ReD}{(3)}+9\]