Number of asthma sufferers in world was about 84 million in 1990 and 130 million in 2001. Lt N represent number of asthma suffers in millions worldwide t years after 1990.
a) write N as the linear function of t. Determine the slope.
b) write N as the exponential function of t. Compute the growth factor
c) how many asthma sufferers are predicted worldwide in year 2010 with linear model? With exponential model?