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Discontinuous function

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List all the values of x for which the given function is not continuous

f(x)= x^2 if x is less than or equal to 2
9 if x>2

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Solution Summary

This shows how to list all the values of x for which a function is not continuous.

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A function f is continuous at x = x0 if and only if lim f(x)=f(x0)
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