How do you find the relative extrema for #f(x)=x^3-4x^2+x+6#?
relative min at
relative max at
To find relative extrema first find the first derivative :
Find the critical value(s) by setting
Use the quadratic formula to find the critical value(s):
Find critical points :
Use 2nd derivative test since it is easy to find the 2nd derivative of this function: