Question

find the 5th,10th,and 100th terms of each sequence .
-19,-22,-25,-28

Answer 1

this is an arithmetic sequence

Answer 2

a1 = -19
what about d ? can you find d by yourself ?

Answer 3

yes it is i know the formula but i need help on how do i get -19 to -22

Answer 4

wait i got it -3

Answer 5

d = -22 - (-19)
(since d = a(n+1) - an)

Answer 6

very good!

Answer 7

so now you can find the formula for the nth term an

Answer 8

and then it's done..

Answer 9

ok i got it now thanks:)

Answer 10

yw