### Tangent lines passing through points.

Posted:

**Mon Dec 07, 2009 8:11 am UTC**I'm just coming up to my calculus final now, and I have realized, to my discontent, that I am still incapable of figuring out a certain type of question in which we are given an function, and told to find a point on said function where the tangent line will pass through a given point. (Example: given y=e^x find where the tangent line passes through 2,7.) I tried reviewing my notes, but it just looks like a variety of gibberish today (especially because my writing is quite messy when I have math first thing in the morning...) Could one of you wise forumites give me a hint or two as to how to begin something something like that?