Identify the slope and $y$-intercept, if they exist. \[ y=-6 x-2 \]

Step 1 ：The given equation is in the form of a linear equation, \(y = mx + c\), where \(m\) is the slope and \(c\) is the y-intercept.

Step 2 ：In the given equation \(y=-6x-2\), the slope is -6 and the y-intercept is -2.

Step 3 ：Final Answer: The slope is \(\boxed{-6}\) and the y-intercept is \(\boxed{-2}\).