Patty and Tracy are always arguing with each other. Tracy boasts that she can solve any of Patty's algebra problems by graphing. Patty took the challenge and said, “I am thinking of two numbers and their difference is 10. What are my two numbers?"* Tracy responded, "There are an infinite number of pairs of numbers that fit your rule, and I can show all of them by graphing a line Write Patty's rule into an algebra equation, where y>x. ​