Question

A bicyclist is training for a race. On the first day of training, she rides 12 miles. She increases the distance she rides by 3 miles each day. Write an explicit formula to represent this scenario. How many miles will the bicyclist ride in her ninth day of training?

Answer 1

Y=12+3(x-1), x is the number of days, y is the miles she ride for that day

Y=36 when x=9. She ride 36 miles in her ninth day.