4. Which situation presents an example
of a non-proportional function?
A A farmer sells fresh peaches for
$0.69 a pound.
B Pete's Pizzas charges a $5 fee for
the delivery of each pizza.
C Christian's cell phone plan
charges $25 per gigabyte of data
used.
D The temperature in the morning
was 49 °F, and it increased by 3 °F
every hour.