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Can someone explain the answers for questions 7 - 12 (I have the correct answers

Calculus
Tutor: None Selected Time limit: 0 Hours

Apr 22nd, 2015

7) f'(x) is positive at  d e because slope at this point is positive

8) f"(x) is positive because slope of the derivative is positive

9)f'(x) is maximised at e because slope is greater

10)f'(x) is negative at b because slope becomes negative or anticlockwise

11) f'(x)  is negative at d because slope of derivative at d is negative

12)and of course slope is minimised at b and it becomes 0 at a

Apr 22nd, 2015

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