please describe the things in the order its listed (example: Sum:... term:...) that way I won't get confused (due in 14 minutes)

Use the function f(x) is graphed below. the graph of the function to find, f(6). -2 -1 1 2

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.

How do i simply this radical expression?