The bar graph gives the average atmospheric concentration of carbon dioxide.
a. Estimate the yearly increase in the average atmospheric concentration of carbon dioxide. Express
b. Write a mathematical model that estimates the average atmospheric concentration of carbon dioxic
c. If the trend shown by the data continues, use your mathematical model from part (b) to project the
dioxide in 2045.
a. The yearly increase in the average atmospheric concentration of carbon dioxide is approximately
(Round to the nearest tenth as needed.)

The bar graph gives the average atmospheric concentration of carbon dioxide a Estimate the yearly increase in the average atmospheric concentration of carbon d class=