How would someone write a shifted geometric sequence in the explicit formula. i believe it requires modification of f(x) = ln(x) however, i haven't been able to figure it out. for example u(n) = u(n-1)(r)-15, let us say u(1) = 28 and r = 2, how would i figure out the 56th term without a graphing calculator using the explicit formula?

Hello,

Look, when you want to do something like put it like x^2. x2 could mean x² or x₂. so to clear confusion, know the notation. to find the product multiply the x's and you get -8x and the y's and you get 6y. since it's all being multiplied it is just -8x6y, or answer a. although the better answer is -48xy(combining -8 and 6) because you should multiply constants whenever you can.

So don't take my word i'm not exactly a mathematical person but i would assume a. because while selling the soap every month you increase in sells so you would by 11 percent. the you would get the factor 0.89 which if i had to guess would be the monthly profit over 11 probably wrong tho