118k views
3 votes
HELP PLEASE AAAAAAAAAAA

HELP PLEASE AAAAAAAAAAA-example-1
User Quasdunk
by
6.6k points

2 Answers

1 vote

IT IS D!!!!!!!!!!!!!!!!!!!!!!!!!!!

User Lbz
by
7.5k points
5 votes

Answer: last choice

In general if we have first term a[1] and common difference d, such that

a[n] = a[n-1] + d

then the explicit formula is

a[n] = a[1] + d(n-1)

First choice has d=-4 so needs a minus sign in the explicit formula.

Second choice has a=-100 so needs a negative sign for the 100.

Third choice swaps a[1] and d, oops.

User Peter Moore
by
7.0k points