Answer:
C. Speed
Step-by-step explanation:
Speed is defined as the distance traveled over time. Mathematically, it's calculated with the equation:
Slope of a graph is the rate at which the y and x axis change together, the "rise over the run." Slope can be simply calculated using this equation:
Therefore, when graphing distance versus time, the change in distance is divided by the change in time to find the slope. This is the same as speed.