Skill 15: Converting Between Exponential and Logarithmic Forms Have SAT Practice Set 3 out on your desk.

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Presentation transcript:

Skill 15: Converting Between Exponential and Logarithmic Forms Have SAT Practice Set 3 out on your desk.

Revisiting Exponents

You Try:

Why use a logarithm? Sound scales (decibels) Earthquake measurements (Richter scale) Musical scales pH measurements

Discovering Logarithms

What is a logarithm? A logarithm is another way of describing the exponent in an equation.

Converting Equations Between Logarithmic and Exponential Forms

You Try: On Your Whiteboard 1.Write in logarithmic form: 2.Write in exponential form:

Evaluating a Logarithmic Expression

You Try:

Solving Simple Logarithmic Equations

You Try:

Logarithm “War” Expectations – On-task – Stuck? Ask your partner, then ask me by raising your hand.

Exit Quiz