Produce graphs of f that reveal all the important aspects of the curve. Then use calculus to find the following. (Round your answers to two decimal places.) f(x) = 4x4 - 32x + 89x - 95x + 27 Find the interval of increase. (Enter your answer using interval notation.) Find the interval of decrease. (Enter your answer using interval notation.) Find the inflection points of the function. smaller x-value (x, y) larger x-value (x, y) Find the interval where the function is concave up. (Enter your answer using interval notation.) Find the interval where the function is concave down. (Enter your answer using interval notation.)