Alegbra . a savings account is started with an initial deposit of $500. the account earns 1.5% interest compounded annually. (a) write an equation to represent the amount of money in the account as a function of time in years. (b) find the amount of time it takes for the account balance to reach $800. show your work.

addition

step-by-step explanation:

graph #4 (last graph) depict the function   f(x)= -m(x-d)^1/5 i

step-by-step explanation:

we know that

m=slope

but in this function slope is -m that means slope is decreasing and it is decreasing by 1/5 points down the x-axis.

which is shown in graph four

a decreasing slope down x-axis by 1/5 points.

hence 4th graph is the right option for this.