You are given a pair of equations, one representing a supply curve and the other representing a demand curve, where p is the unit price for x items.
80 p + x - 380 = 0 and
84 p - x - 40 = 0
a. Identify which is the supply curve and demand curve and the appropriate domain. Put the domains in interval notation . For \infty type infinity . For more than one interval use a U to represent a "union".
Domain of the supply curve
Domain of the demand curve
b. Determine the market equilibrium. Equilibrium: x = p =
c. Determine the revenue function. Revenue function R(x)=
d. Determine the revenue at market equilibrium.