`f(x) = (1/2)x^4 + 2x^3` Find the points of inflection and discuss the concavity of the graph of the function.
Find the critical values for x by setting the second derivative of the function equal to zero and solving for the x value(s).
The critical value for the second derivative is x=0 and x=-2.
If f''(x)>0, the curve is...
(The entire section contains 184 words.)
check Approved by eNotes Editorial