# Exponentials & logarithms

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Lessons

Introduction to logarithmsThe constant e and the natural logarithmQuiz 1Properties of logarithmsThe change of base formula for logarithmsQuiz 2Solving exponential equations with logarithmsSolving exponential modelsQuiz 3Graphs of exponential functionsGraphs of logarithmic functionsQuiz 4Logarithmic scale (optional)Unit testPractice

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Use the properties of logarithms

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Evaluate logarithms: change of base rule

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Use the logarithm change of base rule

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Solve exponential equations using logarithms: base-2 and other bases

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**Exponentials & logarithms**with these 11 questions.About this unit

Learn about logarithms, which are the inverses of exponents. Use logarithms to solve various equations. Then analyze both logarithmic and exponential functions and their graphs.