Demand The demand function for a product

$p=17,000(1-\frac{9}{9e^{-0\mathrm{.}001x}})$

where $p$ is the price per unit $($in dollars$)$ and $x$ i

$($Round your answers to the nearest whole num

$($a$)$

$p=$$$400$

$x=$ units

$($b$)$

$p=$$$1300$

$x=$