Let's first draft the table that will show the student's growth of each school.
High School A (100 Students/Year) High School B (50 Students/Year)
Number yrs. No. students Number yrs. No. students
1 700 1 950
2 800 2 1000
3 900 3 1050
4 1000 4 1100
5 1100 5 1150
6 1200 6 1200
7 1300 7 1250
From the tables generated, it appears that in year 6, the two high schools will have the same number of students.
Let's plot the graph,