Which of the following statement is correct? How?

Mathematics
Tutor: None Selected Time limit: 1 Day

Apr 10th, 2015

D.

Two ways to get the answer:

1. draw a graph, you know you plug in x values, calculate corresponding values, then plot them on the graph

2. take the derivative of f(x). When f'(x)>0, f(x) is increasing; when f'(x)<0, f(x) is decreasing

Apr 10th, 2015

Thank you very much Fatin Menhaz.

Apr 10th, 2015

Question 3 Which method is efficient ? Why?

Apr 10th, 2015
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