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Find the largest number δ such that if |x − 4| < δ, then |4x − 16| < ε, where ε = 1.
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Find the largest number δ such that if |x − 4| < δ, then |4x − 16| < ε, where ε = 1.

User Bajaco
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1 Answer

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|4x-16|=|4(x-4)|=4|x-4|<1\implies |x-4|<\frac14=\delta
User Andy Rose
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