Logarithm Operations

Simplify 7^log₇(2x)

• 0

• 2x

• 2

• 1

The common logarithm has what base?

• 10

• 0

• e

• -e

natural log has a base of?

• e

• No base

• 10

• n

Use the change of base formula and your calculator to approximate the log.

• A

• B

• C

• D

• True, subtraction between two logarithms is division in condensed form.

• True, a logarithm is an exponent. When dividing like bases you subtract exponents therefor dividing logarithms as in this example.

• False, subtraction between two logarithms is division within a single logarithm in condensed form.

Condense: log6 + logx