Consumer expenditure the consumer expenditure for a

Question

Question: Consumer expenditure The consumer expenditure for a commodity is the product of its market price, p, and the number of units demanded. Suppose that for a certain commodity, the consumer expenditure is given by

10,000p - 100p²

(a) Factor this in order to find an expression for the number of units demanded.

(b) Use (a) to find the number of units demanded when the market price is $38.