$\text { Find the value of the derivative (if it exists) of the function } f ( x ) = 15 - | x | \text { at the }$

question 9

Multiple Choice

$\text { Find the value of the derivative (if it exists) of the function } f ( x ) = 15 - | x | \text { at the }$ extremum point $( 0,15 )$

• A) 13
• B) 0
• C) 15
• D) \(- 15\)
• E) does not exist

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