# Equating the function of a reversal tangent.

What is the equation of the reversal tangent of the following function: f(x)=-(x^3)+9x^2-(29x)+35

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#### Solution Preview

The equation of the tangent of a function f(x) is given by its derivative f'(x).

f(x) = -(x^3)+9x^2-(29x)+35

f'(x) = d(f(x))/dx

Derivative ...

#### Solution Summary

This shows how to find the equation of the reversal tangent of a function.

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