13. [2/6 Points] DETAILS PREVIOUS ANSWERS SALGTRIG4 2.3.001. MY NOTES The function f graphed below is defined by a polynomial expression of degree 4. Use the graph to solve the exercise. YA IN To find a function value f(a) from the graph of f, we find the height of the graph above the x-axis at X = NO X . From the graph f(3) = 3 X . The net change in f between x = 3 and x = 4 is f 4 2 X = 2 Need Help? Read It