Use a numerical integration command on a graphing calculator. Find the future value at $9\mathrm{.}25\%$ interest, compounded continuously for $8$ years of the continuous income stream with the rate of flow function f$($t$)=-625$t $+10,000.....$ The future value of the income stream at $9\mathrm{.}25\%$ compounded continuously at the end of $8$ years is $ $($Round to the nearest dollar as needed.$)$