Interest rates have dropped steadily over the last six months. each month they have decreased by point.

a. write an expression to represent the total change of rates over the last six months.
b. find the total change. make sure to express your answer as a mixed number in lowest terms.

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.