Final answer:
To maximize revenue from tolls, the city should charge a toll in the inelastic portion of the demand curve.
Step-by-step explanation:
To raise as much revenue as possible from the tolls, the city should charge a toll in the inelastic portion of the demand curve. This is because when the demand is inelastic, a change in price has a relatively small impact on the quantity demanded. As a result, the city can increase the toll without significantly reducing the number of drivers crossing the bridge, generating more revenue.