Part A.
a) Write an equation of the form f(x) ab' + c for an exponential
function with the following characteristics
b) State the domain and range for this equation.
Horizontal Asymptote of y = 9 and passes through the points (2, 8) and
(0,5)

Part B.
An influenzae virus triples in size every 50 hours. A sample taken from the
door knob initially finds 1250 viral particles.
a) Write a function to relate the amount of virus, A, in number, to the
time, t, in hours.
b) How large is the viral population after 10 days?
c) How long will it take for the colony to reach 33750 organisms?