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Math Help - Values on a tangent line.

  1. #1
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    Values on a tangent line.

    Here's the problem:

    "Find the value of c in Figure 3.12 where the line l tangent to the graph of y=2^x at (0,1) intersects the x-axis."

    Any help on how to do this, please?

    If a picture is needed, just let me know, and I'll try to find one.
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  2. #2
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    Quote Originally Posted by Rumor View Post
    Here's the problem:

    "Find the value of c in Figure 3.12 where the line l tangent to the graph of y=2^x at (0,1) intersects the x-axis."

    Any help on how to do this, please?

    If a picture is needed, just let me know, and I'll try to find one.
    find the equation of the tangent line, set y = 0, and solve for x.
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  3. #3
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    Quote Originally Posted by skeeter View Post
    find the equation of the tangent line, set y = 0, and solve for x.
    Ah, thank you!

    I got the correct answer now.
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