Help me if you are good at math!

Initial amount of investment is $500, each year the investment grows by 6%, and after ten years the investment becomes $800.

How I did this, the initial investment is y intercept AKA the value of y at x=0, to get percentile growth, I did year 0/ year 1 and got 0.94 or 94%, but you have to subtract that from 1 which gives you 0.06 or 6%, and to find value of investment after 10 years, I first did 6% growth per year multiplied by 10 years which gives you 60%, then I multiplied 500(1.6) and got 800. Hope this helped!