The volume of a square pyramid is given by the product of the one third of the base area by its height. The volume of a square pyramid of altitude h cm is 768cm
3
.

a) Find the area of the base, A, in terms of the altitude, h.

b) Explain the meaning of A(9). Calculate A(9).

c) Write down the domain and the range of A(h).

d) Find an expression for the slant height of the square pyramid, sl, in terms of h.