Question

Which of the following situations will include the origin when graphed?

Hayley runs at a pace of 1 mile every 8 minutes.
Gas costs $3.50 per gallon.
It is 68° at 7 a.m., and the temperature increases 5° every hour.
Phone service costs $5.00, and an additional 5 cents for each minute.

Answer 1

The situation that will include the origin when graphed is the phone service costs. When you make zero minutes of calls, the cost will still be $5.00, and this corresponds to the point (0,5) which is the origin.