(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Ok, how do i solve this question

I've attached the picture.. The answer is A but i dont understand how to get that...

3. The attempt at a solution

The solution is also given , but i dont understand the adding and subtracting 5. the Derivative of

y=ln (e^x + 5) y'= 1/ ( e ^ x + 5) , where is the extra e^x coming from in the first line of the solution. Also i already mention the adding and substracing 5.. I have no idea whats going on .. PLz Math guru's plz help me!

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Homework Help: Tangent Line problem

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