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Home Q & A Board Science-Related Homework Help Mathematics
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tommygirl5012 tommygirl5012
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12 years ago
For f (x) = x^3 ? 4x + 2, the derivative is 3x^2 - 4.

Find the equation of the tangent line to f(x) at x = 0

how would i go about doing this?
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tommydtommyd
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12 years ago
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12 years ago
The derivative is the slope of the tangent, so plug 0 into the derivative to find m.  Plug zero into f(x) to find y.  This gives you the point (0,_).   Use the point and slope to write an eqn using y=mx+b or point slope form.
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