Anyone now how to solve and explain this​

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

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.