Review: Convert - Evaluate Logarithms

Front

Rewrite 3^4 = 81 in logarithmic form.

Back

log_3 81 = 4

Front

Evaluate log_8 8.

Back

1

Front

What can we use when we cannot write the expression using the same base?

Back

Change of base formula.

Front

Use the change of base formula to evaluate: log_2 32.

Back

5

Front

Rewrite the equation 10^2 = 100 in logarithmic form.

Back

log_10 100 = 2

Front

Evaluate log_5 25.

Back

2

Front

What is the base of a logarithm?

Back

The number that is raised to a power to obtain a given value.

Front

If log_b a = c, what does this mean?

Back

b^c = a.

Front

Evaluate log_10 1000.

Back

3

Front

What is the change of base formula?

Back

log_b a = log_k a / log_k b for any base k.