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Math Help - Exponential functions help

  1. #1
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    Exponential functions help

    1) Find the coordinates of any stationary point on the curve y = x - e^(x-1)

    i got (-1, -1-e^-2) as being one point is that right?

    2)
    fine the range of values for which the function f(x) = 2x + e^(1-2x) is increasing


    if you could help me with either that would be great, thanks
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  2. #2
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    Quote Originally Posted by perryman View Post
    1) Find the coordinates of any stationary point on the curve y = x - e^(x-1)

    i got (-1, -1-e^-2) as being one point is that right?

    no

    2)
    fine the range of values for which the function f(x) = 2x + e^(1-2x) is increasing

    determine the interval(s) of x where f'(x) > 0

    ...
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  3. #3
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    Quote Originally Posted by skeeter View Post
    determine the interval(s) of x where f'(x) > 0


    HOW!?!?!
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  4. #4
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    Quote Originally Posted by perryman View Post
    HOW!?!?!
    First get the derivative. Can you do that? (See here for the approach: http://www.mathhelpforum.com/math-he...ions-help.html). Please show all your working.
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