Complete the statements about the key features of the graph of f (x) = x5 - 9x3. As x goes to negative infinity, f (x) goes to infinity, and as x goes to positive infinity, f (x) goes to infinity.

Subsitute to find out

actually, since it is odd degree and positive leading coefient, it goes from bottom left to top right

so as x goes to negative infinty, f (x) goes to negative inifnty

as x goes to positive inifnty, f (x) goes to positive inifnty