# How do you differentiate y= 6/x?

We can rewrite the expression $y = \frac{6}{x}$ as $y = 6 {x}^{- 1}$ and apply the power rule for derivatives.
In this case, $y ' = \frac{- 6}{{x}^{2}}$.
The power rule for derivatives states that $\frac{d}{\mathrm{dx}} \left[{u}^{n}\right] = n \cdot {u}^{n - 1}$.