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Asked by ZFeniZ

Find the values of x for which each function is continuous

f(x)={(-2x+1 if x<0),(x^(2)+1 if x>=0):}
3 years ago

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Answered by oobleck
since all polynomials are continuous in their domain, all we need to do is check f(0)
limit(x→0<sup>-</sup>) = -2(0)+1 = 1
f(0) = 0^2 + 1 = 1
so f(x) is continuous at x=0, and thus everywhere.
3 years ago

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