Question 1105763
it is not linear.  If it were, the change from 0 to 1 (+600) would be the same for every single year, and it increases to (+672) for the second year and (+944) for the fifth year.
This is compound interest and the initial increase of 600 in one year is 600/5000 or 0.12 increase.
y=5000(1.12)^n, where n is between 0 and 5
when n=0, y=5000
exponential equation.