When a management training company prices its seminar on management techniques at $400 per person, 1,000 people will attend the seminar. The company estimates that for each $5 reduction in price, an additional 20 people will attend the seminar. Let represent the number of $5 reductions. Use the Maximum Revenue information above to answer this question. Since price cannot be negative, we have < Question 4 Use the Maximum Revenue information above to answer this question. A negative value of z would result in a price increase. Since the problem is stated in terms of price reductions, we must restrict z so that > 0.5 pts Use the Maximum Revenue information above to answer this question. The revenue function R(x) has one critical number = Question 6 0.5 pts Use the Maximum Revenue information above to answer this question. Since R(2) is continuous, we can determine the absolute maximum by evaluating R(a) at the endpoints and the critical number. After doing so, we see the maximum revenue occurs when price reductions.