### Home > APCALC > Chapter 5 > Lesson 5.2.1 > Problem5-56

5-56.

Determine all values of $x$ for which the slope of the line tangent to $y = \frac {1}{6}x^3 − 4x^2 + 9x − 1$ is $5$.

Find the slope function and set it equal to $5$.