Derivative of 8x minus 5 is just 8. Derivative of negative 6x is negative 6. And this is just going to be, I mean, this is just a constant here, so it doesn't matter what limit you're approaching. This is just going to equal this value, which is what? If we put it in lowest common form, simplified form, it's negative 4 over 3. So this limit exists. This was an indeterminate form, and the limit of this function's derivative over this function's derivative exists.