1. Do Now: 4.5 Practice C The formula above gives the amount of money A in an account after t years if the annual interest rate is r (in decimal form), n is the number of times interest is compounded per year, and P is the original principle. What interest rate is required to earn $7 in two months if the principle is $500 and the interest rate is compounded monthly?

3. Academy Algebra II 4.6: Imaginary Numbers HW: p.279 (4-10 even), p.282 (85-90 all) Test 4.1-4.6: Friday, Oct. 3 rd

4. Imaginary Numbers

5.  Therefore

6. Simplify 1.) 2.) 3.)

7. Solve the equation 1.) 2.)

8. Solve the equation 3.)

9. Academy Algebra II 4.6: Imaginary Numbers HW: p.279-280 (12-32 even) Test 4.1-4.6: Friday, Oct. 3 rd

10. Complex Numbers in Standard Form  Standard Form:  Write the expression as a complex number in standard form. (Practice B evens) 1.) 2.) 3.)

11. Simplify: (Practice B evens) 1.) 2.)

12. 3.) 4.) Simplify: (Practice B evens)

13. Practice B (evens): Write the expression as a complex number in standard form. 1.) 2.)

14. Practice B (evens): Write the expression as a complex number in standard form. 3.)