Calculus

which of the following is an equation of the line tangent to the graph of y = (x^3)-x at the point where x =2:
a) y - 6 = 4(x-2)
b) y - 6 = 5(x-2)
c) y - 6 = 6(x-2)
d) y - 6 = 11(x-2)
e) y - 6 = 12(x-2)
thanks!

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asked by Marc
  1. dy/dx = 3x^2 - 1
    at x=2, dy/dx = 11

    which of your lines shows a slope of 11 ?

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    posted by Reiny

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