The price of a visit to the dentist is $50. if the dentist fills any cavities an additional charge of $100 per cavity gets added to the bill. if the dentist finds in cavities what will the cost of the visit be. write your answer as an expression

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.