I have a University Calculus textbook and I have a question on one of the promblems of chapter 2 section 2. If you have the same textbook or are just smarter than me and know how to do this question help, please. It is number 85a. Here it is:
If limit as x goes to 2 is (f(x)-5)/(x-2)=3, find limit as f(x) goes to 2.
My question is how do you find the limit of a function with a function, f(x), in it? The book answer says 5, but I'm not sure how they got it. Thanks to anyone who answers in advance.
I think I just need to make the numuerator equal zero, so that with the limit of 2 I get 0/0.

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