Sally wants to buy some accessories for her hair. she can buy two scrunchies and four barrettes for $12.50 or one scrunchie and six barrettes for $12.25. how much does the scrunchie cost that she wants to buy

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.