I need help and the bottom has 5 Boxes just like the the other one below the letters r X, U,L, B,N

Which of the following graphs represents the function f(x) = 2^x

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/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.