1. Monday, December 2 nd

3. Grades Left the Semester 1.1 more quiz 2.1 more Warm up(Daily grade) 3. Exponential Test (Test Grade) 4. Semester I Final (Final grade) 5.3 Weekly Reviews-(daily Grade)

4. Weekly Review 1.We will have three weekly Reviews 2.Each will count as a Daily Grade 3.They are eligible to replace QUIZ grades

5. High School GPA A: 4.0 B: 3.0 C. 2.0 D. 1.0 F-Receive no Credit. You will have to retake first semester all over again during semester II.

6. Tutoring Option 1: Ms. Evans Tuesday and Thursdays Before School 6:40-7:00 After School 2:10-2:30

7. Tutoring Option 2: Lunch Tuesday and Thursdays Either lunch Go to room 400 FIRST, then to lunch

8. Tutoring Option 3: Algebra Department *Check Schedule in Back

9. Discussion Question What’s the difference between exponential growth and exponential decay equations?!

10. Growth & Decay in graph

11. Growth & Decay in Equation

12. Growth and Decay in Table x-2012 y2481632 x-2012 y3216842

14. For compound interest annually means “once per year” (n = 1). quarterly means “4 times per year” (n =4). monthly means “12 times per year” (n = 12). Reading Math

15. Write a compound interest function to model each situation. Then find the balance after the given number of years. $1200 invested at a rate of 2% compounded quarterly; 3 years. Step 1 Write the compound interest function for this situation. = 1200(1.005) 4t Write the formula. Substitute 1200 for P, 0.02 for r, and 4 for n. Simplify.

16. Step 2 Find the balance after 3 years. ≈ 1274.01 Substitute 3 for t. A = 1200(1.005) 4(3) = 1200(1.005) 12 Use a calculator and round to the nearest hundredth. The balance after 3 years is $1,274.01.

17. Write a compound interest function to model each situation. Then find the balance after the given number of years. $15,000 invested at a rate of 4.8% compounded monthly; 2 years. Step 1 Write the compound interest function for this situation. Write the formula. Substitute 15,000 for P, 0.048 for r, and 12 for n. = 15,000(1.004) 12t Simplify.

18. Step 2 Find the balance after 2 years. ≈ 16,508.22 Substitute 2 for t. A = 15,000(1.004) 12(2) = 15,000(1.004) 24 Use a calculator and round to the nearest hundredth. The balance after 2 years is $16,508.22.

19. Write a compound interest function to model each situation. Then find the balance after the given number of years. $1200 invested at a rate of 3.5% compounded quarterly; 4 years Step 1 Write the compound interest function for this situation. Write the formula. Substitute 1,200 for P, 0.035 for r, and 4 for n. = 1,200(1.00875) 4t Simplify.

20. Step 2 Find the balance after 4 years.  1379.49 Substitute 4 for t. A = 1200(1.00875) 4(4) = 1200(1.00875) 16 Use a calculator and round to the nearest hundredth. The balance after 4 years is $1,379.49.

21. 1. The number of employees at a certain company is 1440 and is increasing at a rate of 1.5% per year. Write an exponential growth function to model this situation. Then find the number of employees in the company after 9 years. y = 1440(1.015) t ; 1646 2. $12,000 invested at a rate of 6% compounded quarterly; 15 years A = 12,000(1 +.06/4) 4t, =$29,318.64 Write a compound interest function to model each situation. Then find the balance after the given number of years.