posted by melek .
Some biologists model the number of species S in a fixed area A (such as an island) by the species-area relationship
log S = log c + k log A
where c and k are positive constants that depend on the type of species and habitat.
(a) Solve the equation for S.
(b) Using part (a), if k = 2 and the area is doubled, then by what magnitude is the number of species increased?