The first step is to add both of Will's runs together, then you will round to the nearest tenth (tenth is the first place after the decimal) and then look at you r results, from there you can answer the question
In the equation y = mx + b (its the form of a linear equation) the slope is m and the y-intercept is b. Comparing that to the problem, we can see that m = -5 and b = -1. So, the slope is -5 and the y-intercept is -1.