Answer:
Distance, d, could be a(n) independent variable because it affects the amount of time that someone has traveled.
Distance, d, could also be a(n) dependent variable because it is affected by the speed traveled.
Explanation:
Both can be dependent or independent variables depending on what result we are looking for. If one tries to know distance covered then distance is dependent variable and speed is independent variable.
So distance is an independent variable of the inverse of the function of motion as a function of time.
So we can conclude that the "Independent variable" is Time in hours or time traveled and the "Dependent variable" is Distance in miles or speed traveled.