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Mathematics 10 Online
OpenStudy (anonymous):

can anyone tell me why |x| isn't continue ?

OpenStudy (rulnick):

It *is* continuous. It's not smooth.

OpenStudy (anonymous):

Oh I see, because the slope on x=0 it's not smooth, how can I proof that using equation?

OpenStudy (anonymous):

i hope not because it is continuous it is however the first example you usually seen of a continuous function that is not differentiable some place this one has no derivative at 0

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