Answer:
Explanation:
Given that the manager of a plant nursery bought 120 lb of soil to use for potting plants. the manager can put 5 lb into each of the small pots and 12 lb into each of the large pots. 
Let no of 5 lbs pots be x and 12 lbs pots be y.
Then total no of weight of soil used will be

Hence 

x intercept of this line is 

y intercept of this line is 

Hence correct answer is option b.