Final answer:
The best equation to describe the distance traveled by Torah after a certain time x seconds would be a linear one, but without additional context, we cannot conclusively pick the best option from the given equations.
Step-by-step explanation:
The question asks which equation best describes the distance Torah travels after x seconds. The best equation to describe the distance traveled would be one in which the distance d is directly proportional to the time x, represented by equations of the form d = mx + b, where m is the constant rate of travel and b is the starting point or the initial distance covered. Among the given options, all equations are linear and fit this form, so the choice would depend on the specific context, such as the initial distance and the speed of travel Torah has. Without this additional information, we cannot definitively select the best equation, however, it is clear that each of these equations relates the distance traveled to time passing, showing a linear relationship between d and x.