David consumes two things: gasoline (q, ) and bread (q2). David's utility function is U(91 , 92) - 5091 92 Let the price of gasoline be p,, the price of bread be P2, and income be Y. Derive David's demand curve for gasoline. David's demand for gasoline is 91 = (Properly format your expression using the tools in the palette. Hover over tools to see keyboard shortcuts. E.g., a subscript can be created with the _ character.)