Evaluating Logarithmic Functions Using a Calculator (5.9.1)

Question 1

• When using a calculator to find the value of a logarithmic function, use the log properties to make your work easier.

Answer 1

• When using a calculator to find the value of a logarithmic function, use the log properties to make your work easier.

Question 2

• A log written without a “b” value is the common log.

y = logx

In a common log, the “b” value is understood to be 10. In other words, y = logx is equivalent to the statement 10y
= x.

Answer 2

• A log written without a “b” value is the common log.

y = logx

In a common log, the “b” value is understood to be 10. In other words, y = logx is equivalent to the statement 10y
= x.