$\"\"$ \ \

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(a)

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Graph elapsed time on the $\"\"$ -axis and balance on the $\"\"$ -axis.

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Plot the points $\"\"$ and $\"\"$ .

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$\"\"$

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$\"\"$

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(b) Find an exponential function to model the data.

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$\"\"$

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Observe the graph:

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The exponential model equation is $\"\"$ .

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$\"\"$

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The exponential model equation is $\"\"$ .

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$\"\"$

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Use the function to predict the balance of the account in $\"\"$ .

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Graph the function $\"\"$ .

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$\"\"$

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Observe the graph:

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The balance of the account in $\"\"$ will be $\"\"$ .

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$\"\"$

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(a)

\

Graph elapsed time on the $\"\"$ -axis and balance on the $\"\"$ -axis.

\

Plot the points $\"\"$ and $\"\"$ .

\

$\"\"$

\

(b) The exponential model equation is $\"\"$ .

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(c) The balance of the account in $\"\"$ will be $\"\"$ . \ \