Between 1866 and 2003, carbon dioxide (CO₂) concentration in the atmosphere rose from roughly 250 parts per million to 375 parts per million Assume that this growth can be modeles
with an exponential function Q=Qox (1+r). Complete parts (a) and (b) below.
a. By experimenting with various values of the growth rater, find an exponential function that fits the data for 1866 and 2003.
(Round to five decimal places as needed.)