Proportional vs Nonproportional Functions
Which situation represents proportional function?
O A store sells shirts for $5 each, or 2 shirts for $10, or 5 shirts for $20
O The cost for pizza is $12 per pizza plus $0.50 for each topping.
O A parking garage charges $5 for the first hour, then $3 each additional hour.
O A homeowner pays $30 for mowing plus $5 for a tip every week.