Q. Determine all intervals on which the graph of f is increasing.
Find Derivative of f(x): To find where f(x) is increasing, we need to look at the derivative f′(x) and find where it is positive.
Solve f′(x)>0: Let's say we found the derivative f′(x). Now, we solve the inequality f′(x)>0 to find the intervals of increase.
Identify Positive Intervals: After solving the inequality, we get the intervals where f′(x) is positive. Let's say those intervals are (a,b) and (c,d).