Linear Inequalities
Date from the U.S. Department of Agriculture indicates that the model y=4.35 x+22.84 is useful for predicting the average number of dollars earned per 100 pounds for beef,y, between 1999 and 2006 (x=0 corresponds to 1990). Assuming this model holds for year before 1999 and years after 2006,
a.In what years were the dollars earned per 100 pounds less than 70?
b.In what years were the dollars earned per 100 pounds greater than 88?

Question

Linear Inequalities
 Date from the U.S. Department of Agriculture indicates that the model y=4.35 x+22.84 is useful for predicting the average number of dollars earned per 100 pounds for beef,y, between 1999 and 2006 (x=0 corresponds to 1990). Assuming this model holds for year before 1999 and years after 2006,
 a.In what years were the dollars earned per 100 pounds less than 70? 
b.In what years were the dollars earned per 100 pounds greater than 88?