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Math Help - slope of curve

  1. #1
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    Post slope of curve

    For f(x)=5x^2 at the point (2,20), find
    a) slope of curve
    b) an equation of the tangent line
    c) an equation of the normal line

    Here is what I have so far:
    a) m=20
    b) y-20=20(x-2)
    c) y-20=-\frac{1}{20}(x-2)

    Is my work correct? Thanks!
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  2. #2
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    Quote Originally Posted by live_laugh_luv27 View Post
    For f(x)=5x^2 at the point (2,20), find
    a) slope of curve
    b) an equation of the tangent line
    c) an equation of the normal line

    Here is what I have so far:
    a) m=20
    b) y-20=20(x-2)
    c) y-20=-\frac{1}{20}(x-2)

    Is my work correct?
    YES
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