Find lim x- 4 - f x - where f x - x-7- x4-

Given: #160; f( x ) = x+7, amp; x lt;4 2 x+3, amp; x gt;4 lim _ x→ 4 ^ f(x) =lim _ x→ 4 (x+7 )=4+7=11 ...

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Right Hand Limit

Find lim x→...

Question

Find $lim x \to 4^{-} f (x)$ , where $f (x) = {\begin{matrix} x + 7, & x < 4 2 x + 3, & x > 4 \end{matrix}$ .

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