mx 13 if x < - 9 - Let f(x) = x² + 3x − 4 if x ≥ −9 If f(x) is a function which is continuous everywhere, then we must have m =

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A: Since you have posted a question having multiple subpart part as per guidelines we can solve only…

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A: Note:- Since you have asked multiple question As per our policy, we will solve the first question…

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A: A detailed solution is given below.

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