Answer:
Total Revenue Function = 7000p - 0.15 p^3
Rate of change per unit price change = 7000 - 0.45 p^2
Step-by-step explanation:
x = 7000 - 0.15 p^2 [Quantity given]
Total Revenue is the total value of receipts from sale. TR = Price X Quantity
TR Function = p.x
= p (7000 - 0.15 p^2) = 7000p - 0.15 p^3
Rate of change in revenue, due to change in price
dTR / dP = 7000 - 0.45 p^2