Question

Please help me solve. I think increase = concave up and decrease = concave down? On the graph y = x^5-15x^3+10 for x what intervals is the function increasing, decreasing, concave up and concave down. Plot the critical points, plot and label the inflection points. Solve for the max and min values of y if x is restricted to the interval(1, 5)Thanks in advance as I do not know how to go back and write my thank-yous afterward:)