Jason likes to play video games. His parents allow him to play for 20 minutes plus 10 min for each half hour he does chores or studies. He can never play for more than 90 min/day.
The function f(x) = 20 + 10x models the number of minutes per day Jason could play where x represents the number of half hour increments he has done chores or studied. What is the practical range of the function?
