So the slope, if you had the graph of y equals x, the slope there is one. Or what's the rate of change at which x changes with respect to x? Well, it's going to be one for one. So the slope here is one. So this is going to be five times one, which is equal to five. And at the end, they just say, what step did Avery make a mistake? So she clearly made a mistake at step one.