1. Homework Check

2. Skills Check

3. BONUS!! Expand:

4. 6. 4 – Solving log and exponential functions: 1
6.4 – Solving log and exponential functions: 1. How do I solve exponential functions? 2. How do I solve logarithmic functions?

5. Change-of-Base Formula
Let a, b, and x be positive real numbers such that a1 and b1.

6. ALPHA Window, select Log BASE!!**
Evaluate using the natural logarithms. Round to four decimal places.
**NEW TI-84:
ALPHA Window, select Log BASE!!**

7. Steps for solving Equations
Isolate the base.
If you can rewrite to make the same base, do it!
If not,
Rewrite an Exponential Equation in log form.
Rewrite a Logarithmic Equation in exp. Form.
CHECK YOUR ANSWER!!

8. Ex. 1
Storing in Calc as “x” :

9. Ex. 2
Storing in Calc as “x” :

10. Ex. 3
Storing in Calc as “x” :

11. Ex. 4

12. Ex. 5
Storing in Calc as “x” :

13. Ex. 6
Storing in Calc as “x” :

14. Ex. 7 – Log Equations

15. Ex. 8 – Log Equations

16. Ex. 9 – Log Equations

17. Ex. 10 – Log Equations

18. Ex. 11 – Log Equations

19. Ex. 12 – Last Exponential!!

20. Homework
6.3 Worksheet