-5 Use the graph to answer the question. What is the average rate of change of fits) between F' and Q? O A. 1 O B. 1 O C. O D. 3What is the instantaneous rate of change of the function f (x) = 6x - x at the point (-1,7) ? O A. -13 O B. -5 O C. 7 O D. 11What is the equation of the line tangent to the function f(x) = -x+5 at the point (1,4) ? O A. y=-x+5 O B. y=-x+9 O C. y= -2x+6 O D. y= -2x+9