Seth compares the two new scenarios and concludes that driving from a relative’s house is faster than biking from Dad’s work. Bike from Work: His dad’s work is 5 miles from school, and he bikes at 0.2 mile a minute.

Relative’s House: y = 1.2x − 4

Seth learns that there is construction on the highway from his relative’s house, slowing the rate to 0.7 mile each minute. How much longer will it take from his relative’s house during the construction compared to biking.