1. Lesson 3

1.5. Explore 4

Mathematics 30-1 Module 6

Module 6: Exponents and Logarithms

 

textbook

Read the summary at the top of page 375 of the textbook. This paragraph summarizes some logarithmic properties. Note how the properties can all be more easily understood by looking at the expression in exponential form.

 

Try This 3

 

Now that you have practised evaluating logarithms, it is time to apply this skill to solve logarithmic equations.

  1. Use your knowledge of logarithms to solve the equation
    1. Express  in exponential form.
    2. Solve for x.
  2. Solve the equation logx 49 = 2.
    1. Express in exponential form.
    2. Solve for x.

course folder Save your responses in your course folder.

Can x be a negative value?
You should find that x = 3.