The temperature of a solution in a science experiment is -4.3°C. Mark wants to raise
the temperature so that it is positive.
Part A
Give an example of a number of degrees Celsius by which Mark could raise the
temperature.
Part B
Write an equation to represent the situation.

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.