The slope of this line is \(-5\). In order for two lines to be perpendicular, their slope's must have a product of \(-1\). So \(-5x = -1\), solving this we can get \(x = \frac{1}{5}\). \(\frac{1}{5}\) is your slope.

The slope of this line is \(-5\). In order for two lines to be perpendicular, their slope's must have a product of \(-1\). So \(-5x = -1\), solving this we can get \(x = \frac{1}{5}\). \(\frac{1}{5}\) is your slope.