SOLUTION: Derivatives and Continuity. Find the equation of a normal line of the function f(x) = 4x^3 -7x^2 at the point corresponding to x=3.
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Question 1111999: Derivatives and Continuity. Find the equation of a normal line of the function f(x) = 4x^3 -7x^2 at the point corresponding to x=3. Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! Find the equation of a normal line of the function f(x) = 4x^3 -7x^2 at the point corresponding to x=3.
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f(x) = 4x^3 -7x^2
f'(x) = 12x^2 - 14x
f'(3) = 108 - 42 = 66 = slope at x = 3
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m = 66, f(3) --> (3,45)
