F(x.Y) = 3y' - 4xy + 14y + 2x2 - 5x + 7 then f._, equals O 18y Oo O -4 O Does Not Exist O gy2 - 4X + 14 O1 O -4y + 4x - 5 Submit AnswerSuppose the price of land in a city is given by the function P(x,y) = 388 - 10(x - _) - 15(y -1)2 where P(x,y) is the price of land at the point (x,y) in dollars per square metre and x and y are measured in kilometres. At what point within the city is the price of land highest? 07 2) O (0,0) O None of the other answers O (1, 1) 0 (4,1) O ( 2 , 2 ) 0 (1, 2 ) 0 ( -# - 2 ) Submit AnswerInterest Formula. Suppose you work at a bank and the manager provides a new type of formula to calculate interest when merging two loans together. Suppose there are two loans with one interest rate at 3% and a second loan at 4%. The manager writes the first part of the formula for the new interest rate as e (3In(4) + 4in(3)) Which of the following is equivalent to the manager's expression? O e 64+281 O 2592 O 145 O 5184 O e-17 Oo 5184 O 2592 Submit