The total number of inches R(t) of rain during a storm of length t hours can be approximated by R(t) = at t + b , where a and b are positive constants that depend on the geographical locale. (a) Discuss the variation of R(t) as t → ∞.

The total number of inches Rt of rain during a storm of length t hours can be approximated by Rt at t b where a and b are positive constants that depend on the class=