1. 1.2 Cont. Learning Objective: to continue to find terms of sequences and then to find the sum of a geometric series. Warm-up (IN) 1.Give the first 4 terms of the sequence: a. b. 2. Write a rule for the nth term of the sequence: 6, -42, 294, -2058, … -2, -1, -1/2, -1/4 5, 15, 45, 135

2. Notes! Ex 1 – find

3. Ex 2 – find the missing terms in the geometric sequence a. 5, ____, ____, ____, 80 First we need to find r or

4. b. 243, ____, ____, 9 Sum formula for geometric series –

5. Ex 3 – find the sum of the first 6 terms of a geometric series if Ex 4 – find the sum of a geometric series if First we need to find n

6. Ex 5 – find the sum of the first 10 terms of

7. HW – finish worksheet Out – explain the difference between arithmetic and geometric. Summary – Now I understand… Don’t forget about POW!! Quiz next class on arithmetic!!