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
Content will be erased after question is completed.
Enter the email address associated with your account, and we will email you a link to reset your password.
Forgot your password?