The Computer Problem

The school board has just decided that every mathematics classroom in your school will be able to purchase a computer for classroom demonstrations. Your teacher has asked you to help determine which computer to buy. The class investigates and finds a "Consumer's Tips" column that rates the different computers from which the teacher can choose.

The consumer guide rates the computers from 0 to 10 on Performance and Affordability. A score of (0, 0) is terrible performance and unaffordable, while a score of (10, 10) is a perfect computer.