A savings account with compounded interest can be modeled by which type of graph?

A savings account with compounded interest is modeled by a geometric progression. The geometric progression uses the formula A * (1+i/100) ^n, where A is the capital invested, i is the % interest rate and n is the number of periods. Being A and i two constants and n the independent variable, the formula is an exponential function. then the type of graph that best models the saving accounts is an expnential graph.