CPM Homework Help : A2C Problem 12-20

A series has 9 terms, the last term is 18, and the fifth term is 6. What is the series? Homework Help ✎

Hint:

Find the sequence that corresponds to the terms of the series.

Hint 2:

t(5) = 6 = (5)a + b
t(9) = 18 = (9)a + b

Hint 3:

a = 3 and b = −9

More Help:

Now use the sequence to find the rest of the terms of the series.

Answer:

(−6) + (−3) + 0 + 3 + 6 + 9 + 12 + 15 + 18