How do i solve this (-2,6) (4,3) it's a select all correct answers

What are the domain and range of f(x)=[1/5]x

What can you determine about the solutions of this system

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance