In a supply and demand diagram, draw the shift of the demand curve for hamburgers in your hometown due to the following events. In each case, show...

In a supply and demand diagram, draw the shift of the demand curve for hamburgers in your hometown due to the following events. In each case, show the effect on equilibrium price and quantity.

consider the following:

a. The price of tacos increases.

b. All hamburger sellers raise the price of their French fries.