Suppose a manufacturer's revenue function is given by $\displaystyle {R}{\left({q}\right)}=-{6}{q}^{{2}}+{800}{q}$ , where $\displaystyle {R}{\left({q}\right)}$ is in dollars and $\displaystyle {q}$ is units sold.

Find the rate at which revenue is changing when $\displaystyle {q}={3}$ units.



Which best interprets your previous answer? (Choose one)