Harry buys 3 packs of ruled notepads. each pack has same number of notepads. stella buys 4 packs of plain notepads. each pack has same number of notepads. if a represents the number of ruled notepads and b represents the number of plain notepads, write the expression showing the total number of notepads.

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.