Let f be the function defined by f(x) = 2x^3 -x Which of the following expressions is the average rate of change off on the interval [1, 3]? A) (f(3)-f(1)) /( 3-1)
B)(f(3)+f(1)) / 2
C)f(3)-f(1)
D)(f(3)+f(1)) /( 3+1)

We need more info then that

You would need a laid out graph for this but could you provide a picture of just a graph? i can give stepssolve for y.subtract 4xdivide by -1 (opposites)graph slope intercept formcheck each point to see if it’s on the graph