Mathematics 30-1 Module 6

Read “Example 4” on page 411 of the textbook. Notice the following points when reading:

There is no formula given in the question. The formula was determined using the form
The original amount of C-14 was not required to solve this problem.
This problem could also have been solved using the method of converting from exponential to logarithmic form.
p and t are in the same units—years.
b < 0 because the question is about decay.

Self-Check 3

Complete “Your Turn” at the end of “Example 4” on page 411 of the textbook. Answer
Complete questions 14, 16, and 17 on pages 414 and 415 of the textbook. Answer

Did You Know?

At some point in your life you will likely want to buy a home. Most people need a loan to purchase a home. This loan is called a mortgage. In order to qualify for a mortgage in Canada, you need to have a down payment of 5%, and you need to prove that you can pay your bills.

The financial institution that issues the mortgage will determine how much money you can borrow based on your ability to repay the mortgage. If you cannot repay the mortgage, the financial institution can seize your other assets, including money in savings accounts, cars you own, and so on.

Add logarithmic equation to your copy of Glossary Terms.

Add the following formulas to your copy of Formula Sheet.

A = P(1 + i)n

Module 6: Exponents and Logarithms

Self-Check 3