Which expression represents each mathematical phrase? add 12 and a number subtract a number from 12 divide a number by 12 multiply 12 by a number answers: 12c 12 over c or 12/c c - 12 12 + c c over 12 or c/12

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.