At which labeled point(s) is the function increasing?
A) A
B) A, E
C) C, F
D) E

Question

At which labeled point(s) is the function increasing? 
A) A 
B) A, E 
C) C, F 
D) E

Quizplus · Accepted Answer

The function is increasing when its derivative is positive. Looking at the graph, we can see that the derivative is positive at points A and E, so the correct answer is B: A, E. Points C and F correspond to local maxima, so the function is not increasing at those points. Point E is a local minimum, but the function is increasing when moving to the right of E.

At Which Labeled Point(s) Is the Function Increasing