An airport is located next to a housing development. Profits to the airport are simply 20 f-f 2, where f is the number of flights per day. The housing developers profits are 28hh2-h, where h is the number of houses and f is the number of flights per day. If the airport is not required to pay the developer for any "damages" from the flights, how many houses will the developer build

Is there a direction u in which the rate of change of f(x,y)equals=x squared minus 3 xy plus 4 y squaredx2−3xy+4y2 at p(1,2) equals 14? give reasons for your answer. choose the correct answer below. a. no. the given rate of change is smaller than the minimum rate of change. b. no. the given rate of change is larger than the maximum rate of change. c. yes. the given rate of change is larger than the minimum rate of change and smaller than the maximum rate of change.