Objective: Students can Determine if a Geometric Sequence

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Presentation transcript:

Objective: Students can Determine if a Geometric Sequence Agenda: -POD Functions -Arithmetic Seq -Geometric Seq -Sprint -Geo Formula -Exit Ticket How Assessed: Sprint Job 21 Need HELP! Stay After this Tues - Thurs ! SORRY NO AFTER SCHOOL TODAY

State if Geometric Sequence Or Not? -2,-4, -6,… 2, 8, 32,… -27, -9, -3,…

VOCABULARY

SPRINT ACTIVITY! Instructions: Leave paper upside down until you are told to “GO” You will have 1 Minute to figure out what to do and do as many as you can When you hear stop writing

Check for Understanding State on a Learning Scale of 1 – 4 what level of understanding you are at on Whether A Function! 4 – Great & I can Teach 3 - Good & Understand it 2 – Can do must but need help on harder parts 1 – Can do only with help 0 – I Need Help

Practice Problems Write a recursive formula for the nth term of the sequence ? 4, 12, 36, …

EXAMPLES

Practice Problems Which of the following sequence is not a geometric sequence? a) 3, 9, 27, 81,… b) 200, 20, 2, , … c) -10, 20, -40, 80… d) 4, 6, 8, 10, …

Practice Problems What is the common ratio of the geometric sequence shown -4, 8, -16, 32,…

Job 21: Q16! 16. A pendulum swings 80 cm on its first swing. 76 cm on its second swing, 72.2 cm on its third swing, and 68.59 cm on its fourth swing. a. What explicit formula can be used to find the distance of the nth swing? b. Use your formula to find the distance of the 10th swing.

Most Missed Quiz Question!@ 6. Bryce invested $600 in a savings account at a 3% annual interest rate. He made no deposits or withdrawals on the account for 2 years. Find, to the nearest cent, the balance in the account after 2 years.