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Papessa [141]
3 years ago
15

PLEASE HURRY!!!!! What is the turning point of the graph of f(x) = |x – 4| ?

Mathematics
1 answer:
viva [34]3 years ago
8 0
f(x)=|x-4|\\
f'(x)=\text{sgn} (x-4)\\
\text{sgn} (x-4)=0\\
x-4=0\\
x=4\\\\



For x f'(x).
For x>4 f'(x)>0.
\Downarrow\\

At x=4 there's turning point, which is equal |4-4|=|0|=0.

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