\"\"

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The exponential functions are \"\", \"\", \"\" and \"\".

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Graph the functions \"\", \"\", \"\" and \"\" on a common screen.

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\"\"

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From the properties of the exponential functions,

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If \"\", then \"\"  is decreasing.

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Observe the graph,

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The curves are approaching zero as \"\" and all the functions having the base less than one.

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All the curves passing through the point \"\".

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All the curves are exponentially decreases.

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\"\"

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Graph:

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\"\"

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The curves are approaching zero as \"\" and all the functions having the base less than one.

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All the curves are exponentially decreases.