\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
The graph below shows a function \(h\) that is continuous on \([-2, 2]\) but not differentiable at \(x=0\).
Explain why this function is not differentiable at \(x=0\) by observing the tangent behavior.
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