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# show that the function f(x)=x is continuous but not differentiable at x=0?

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- az_lenderLv 75 months ago
False. If f(x) = x, then the derivative is 1 at all points, including the point x = 0.

- 5 months ago
Refer to the attached image

- ...Show all comments
Since that is pure gibberish I would skip it. Unless they used a curvy x to mean |x| in which case w.o.w.

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good answer; also, in a two-dimensional Cartesian Plane, f(x) is the straight line containing the point (0,0) with slope = 1