The demand for company X's product is given by Qx=12-3Px+4Py . Suppose good X sells for $3.00 per unit and good Y sells for $1.50 per unit.
a. find out the cross-price elasticity of demand between goods X and Y at the given prices.
b. Are goods X and Y substitutes or complements?
c. What is the own price elasticity of demand at these prices?
d. How would your answers to parts a and c change if the price of X dropped to $2.50 per unit?