Susan currently has an account balance of $1,336.60. her initial deposit on the account was $820 and it earned 4.5% simple interest. how long has susan held the account?

answer: evaluate the objective function at each vertex to determine which - and -values, if any, maximize or minimize the function. example: find the minimum value and maximum value of the objective function f ( x , y ) = 4 x + 5 y , subject to the following constraints

you didn't give me the choices, so i will just give you the graph so you can look at your choices and choose the right one.