And let's see if f of x is equal to negative 2 at any point. So let me draw a line over here, negative 2. Negative 2, we have to look at it visually, because they've only given us this visual definition of f of x. Doesn't equal negative 2, doesn't equal to negative 2, only equals negative 2 right over there. And it looks like we're at about 2 and a half, but let's get exact. Let's actually figure out the slope of the line and figure out what x value actually gives f of x equal to negative 2. And we can figure out the slope of this line fairly visually, or figure out the equation of this line fairly visually.