A bank charges a fee on savings accounts that are inactive for an extended period of time. The equation y = 7500(0.97) x represents the value, y, of one account that was left inactive for a period of x years. What is the y-intercept of the equation and what does it represent?
0.97, the percent of money in the account after x years
0.97, the percent of money in the account initially
7500, the amount of money in the account after x years
7500, the amount of money in the account initially