Answer:
For x = 0, the value of y will be 10 miles.
Explanation:
Mark is in training for a marathon race. Each day he runs 10 miles for this training purpose. He will be increasing his running by this weekly formula:
, where y is the number of miles he will run each day, x represents the number of weeks from now.
Now, for x = 0, the value of y will be
miles. (Answer)