Exponential Functions Review

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What is the definition of exponential growth?

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Exponential growth occurs when a quantity increases by a consistent percentage over a period of time.

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What is the definition of exponential decay?

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Exponential decay occurs when a quantity decreases by a consistent percentage over a period of time.

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Front

Identify the equation that represents exponential growth: y=2(0.5)^{x} or y=0.5(2)^{x}.

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y=0.5(2)^{x}.

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What does the graph of an exponential growth function look like?

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It rises steeply as x increases.

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What does the graph of an exponential decay function look like?

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It falls steeply as x increases.

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What is the base in an exponential function?

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The base is the constant that is raised to a power (exponent).

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What is an exponent?

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An exponent indicates how many times to multiply the base by itself.