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Tangent problem

  1. Sep 21, 2007 #1
    1. The problem statement, all variables and given/known data
    suppose y=2x-3 is an en equation of the tangent line to the graph of y=f(x) at the point where x=2. find the value of f'(2) and f(2).

    2. Relevant equations
    I know how to get the tangent line, but this wording throws me off. a little help at how to solve f(2) and f'(2).

    3. The attempt at a solution

    I have attempted and failed.
  2. jcsd
  3. Sep 21, 2007 #2


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    What does tangent mean?
  4. Sep 21, 2007 #3
    since y=2x-3 is an en equation of the tangent line to the graph of y=f(x) at the point where x=2 , f'(2) equals to slope of the tangent line (2)
    you can find f(2) easily by drawing a graphic.
  5. Aug 15, 2011 #4
    suppose you want to kiss somebody, but must do something at some point. You kiss this person only if you are at that point. How would you graph this?
  6. Aug 15, 2011 #5


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    Oh, I like that!
  7. Aug 15, 2011 #6
    Why would someone answer a post this old?
  8. Aug 15, 2011 #7


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    Well, naaa00 is a newby.

    Beyond that, it appears that HoF got a real kick out of naaa00's post, so it was well worthwhile for naaa00 to post in this old thread. (IMO)
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