Find the second, fourth and eleventh terms of sequence described by each rule.

Question

13. A(n)=2+(n-1)(-2.5)
14. A(n)=-9+(n-1)(3)

I need help please, i am bad at mathh

Answer 1

This is pretty easy. put in what term you want for n...say you want the 11th term, then

13. A(13)=2+(13-1)(-2.5)
A(13)=2+12*(-2.5)
A(13)=2-30=-28 check that

Answer 2

Thank you:)

Answer 3

what about 14?

Answer 4

is the answer in order so second ter fourth term than 11th term bobpursely?