1. 6.5 Applications of Common Logarithms
Learning Objective: to define and use the common logarithmic function to solve exponential and logarithmic equations and to evaluate logarithmic expressions by using the change-of-base formula.
Warm-up

2. Properties of Logarithms
Learning Objective: to define and use the common logarithmic function to solve exponential and logarithmic equations and to evaluate logarithmic expressions by using the change-of-base formula.
Notes
Common Logarithm -
base-10
Properties of Logarithms
Product Property
Quotient Property
Power Property

3. Learning Objective: to define and use the common logarithmic function to solve exponential and logarithmic equations and to evaluate logarithmic expressions by using the change-of-base formula.
EX 1 – solve
When you can’t get same bases, take the log of both sides!
Must get guy with exponent alone, first!

4. Learning Objective: to define and use the common logarithmic function to solve exponential and logarithmic equations and to evaluate logarithmic expressions by using the change-of-base formula.
Change of base formula
EX 2 – Evaluate

5. Don’t forget about POW!! HW –
Out – Solve the problem you made up for the out on April 20th.
Summary – Now I can…
Don’t forget about POW!!
HW –