Solve the Problem. -The Revenue in Dollars from the Sale of Concert Tickets

Multiple Choice

Solve the problem.
-The revenue in dollars from the sale of concert tickets at x dollars each is given by the function R(x) = 19,000x - 500x2. Find the difference quotient when x = 20 and h = 0.1. Interpret the result.

A) At 20 per ticket, revenue is increasing at $1050 per dollar change in ticket price.
B) At 20 per ticket, revenue is increasing at $105 per dollar change in ticket price.
C) At 20 per ticket, revenue is decreasing at $105 per dollar change in ticket price.
D) At 20 per ticket, revenue is decreasing at $1050 per dollar change in ticket price.