Produce graphs of f that reveal all the important aspects of the curve. Then use calculus to find the following. (Enter your answers using interval notation. Round your answers to two decimal places.) RX) = X - 5x4- x3+ 28x2 - 2x Find the interval(s) of increase. (-00, - 1.49955 ) U (0.03580,2.62274) U (2.84101,00) Find the interval(s) of decrease. (-1.49955,0.03580 ) U (2.62274,2.84101) Find the inflection points of the function. smallest x-value (x, y ) = ( x, y ) = largest x-value ( x, y ) = Find the interval(s) where the function is concave up. Find the interval(s) where the function is concave down. Need Help? Read It