What is the general equation of a cosine function with an amplitude of 3, a period of 4 pi, and a horizontal shift of Negative pi? y = 4 pi cosine (3 (x minus pi)) y = 3 cosine (4 pi (x pi)) y = 3 cosine (0. 5 (x pi)) y = 4 pi cosine (0. 2 (x pi)).

Maybe fx = lxl because of the way the x is positioned is that what he

It may be a numbers or cell preferences. a cell preferences is a cell or a range of cell  a worksheet and can be used in a formula so that microsoft office excel can find the values or data that you want that formula to calculate. it is in the excel and it is very important.