Suppose a product's revenue function is given by $\displaystyle {R}{\left({q}\right)}=-{4}{q}^{{2}}+{1000}{q}$, where $\displaystyle {R}{\left({q}\right)}$ is in dollars and $\displaystyle {q}$ is the number of units sold.

Use the marginal revenue function to find the approximate revenue generated by selling the $\displaystyle {29}^{{{t}{h}}}$ unit.
Marginal revenue$\displaystyle =$ Preview Question 6   dollars per unit