Question

Suppose that f(x)=x^4−7x^3.
(A) List all the critical values of f(x). Note: If there are no critical values, enter 'NONE'.


(B) Use interval notation to indicate where f(x) is increasing.
Note: Use 'INF' for , '-INF' for −, and use 'U' for the union symbol.
Increasing:

(C) Use interval notation to indicate where f(x) is decreasing.
Decreasing:

(D) List the x values of all local maxima of f(x). If there are no local maxima, enter 'NONE'.
x values of local maximums =

(E) List the x values of all local minima of f(x). If there are no local minima, enter 'NONE'.
x values of local mini

Answer 1

You know how to find the critical values at all? or do you know what it means*?