Self-Assessment for Concepts and skills: 10 - 15 15 Which expression does not belong with the other three? o –4 + 6 + 3x 0 3x + 9-7 o 5x – 10 - 2x o 5x – 4 + 6 - 2s Explain your reasoning. 0 / 10000 Word Limit T, B​

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.