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Students are shown 4 exponential equations, and 4 graphs and asked to match them.

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Match the equations with the graphs

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Exponential functions with a power of $x$ exhibit exponential growth - that is, $y$ increases as $x$ increases.

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Exponential functions with a power of $-x$ exhibit exponential decay - that is, $y$ decreases as $x$ increases.

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When $a \\leq 2$ the function grows or decays much more slowly than when $a \\geq 4$

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