The functions f(x) = 500(1.015)x and g(x) = 500(1.021)x give the total amounts in two different savings accounts after x years. how do the graphs of f(x) and g(x) compare? the graph of g(x) has a greater y-intercept, and rises more quickly over time. the graph of f(x) has a greater y-intercept, and rises more quickly over time. they have the same y-intercept, but the graph f(x) rises more quickly over time. they have the same y-intercept, but the graph g(x) rises more quickly over time.