Question

You are travelling on a bus to camp, which is 200 miles away, at 50 mph.The number of miles, N, that you have left to travel after t hours. Does this represent Direct Variation?

Answer 1

The number of miles left to travel after t hours represents direct variation with a constant rate of 50 miles per hour.

Step-by-step explanation:

Direct variation is a relationship between two variables where their ratio is always constant. In this case, the number of miles left to travel, N, after t hours, can be represented by the equation N = 200 - 50t. It can be observed that as t increases, N decreases linearly at a constant rate of 50 miles per hour.

The equation N = 200 - 50t is an example of direct variation because the ratio of N to t is always constant, which is -50.