For each item below, draw a graph with quantities of pepperoni pizza on the horizontal axis and quantities of anchovy pizza on the vertical axis to illustrate the following situations. In each case draw two different indifference curves and make a little arrow pointing in the direction of greater preference.
(a) Marvin loves pepperoni pizza and hates anchovy pizza.
(b) Mary hates anchovy pizza and is completely indifferent about pepperoni pizza.