1. 2. 5, -20, 80, -320, ______, ______, ______
M3U1D2c Warmup:
Find the next three terms of each sequence. Explain how you found the terms.
2, 6, 18, 54, ______, ______, ______
2. 5, -20, 80, -320, ______, ______, ______
162
486
1,458
Multiplied by 3 each time
1,280
-5,120
20,480
Multiplied by -4 each time

2. Collect Parent Letters
Homework Check:
Document Camera
Collect Parent Letters

3. M3U1D2c
Compound Interest
Objective:
To Interpret the parameters in linear or exponential functions in terms of context.

4. Compound Interest
Simple interest – interest is paid only on the principal
Compound interest – interest is paid on both principal and interest, compounded at regular intervals
Example: a $1000 principal paying 10% simple interest after 3 years pays .1  3  $1000 = $300 If interest is compounded annually, it pays .1  $1000 = $100 the first year, .1  $1100 = $110 the second year and .1  $1210 = $121 the third year totaling $100 + $110 + $121 = $331 interest

5. Compound Interest Period Interest Credited Times Credited per year
Rate per compounding period
Annual
year 1 R
Semiannual
6 months 2
Quarterly
quarter 4
Monthly
month 12

6. Compound Interest
Compound interest formula: A = the compound amount or future value P = principal i = interest rate per period of compounding n = number of periods I = interest earned

7. Compound Interest
Example: $800 is invested at 7% for 6 years. Find the simple interest and the interest compounded annually Simple interest: Compound interest:

8. Compound Interest
Example: $32000 is invested at 10% for 2 years. Find the interest compounded yearly, semiannually, quarterly, and monthly yearly: semiannually:

9. Compound Interest
Example: (continued) quarterly: monthly:

10. Distribute and discuss
PROJECT:
Distribute and discuss
Postponed

11. Classwork:
U1D2c WS #1-10

12. Homework: Finish CW AND
have your parent read the class letter then sign & return the actual Math III acknowledgement sheet to me.