c) at the x = -6 intercept the graph goes from positive to the left of -6 and negative to the right of -6.

at x = -1/2 the graph is increasing from the left until it touches the x-axis at x = -1/2 and then turns around and starts decreasing again to the right of the intercept.

d) there are 2 turning points

e) for large values of IxI, the graph resembles f(x) = - x^5