It has been discovered in a certain state that the relationship between the number of ear phones demanded varies linearly with its price.
When the price per item was $ 36 ,2700 items were demanded;
When the price was $ 53 , 2640 items were demanded.
Determine the price per item when 2648 ear phones are demanded. $___
Above what price will the demand be zero?

Question

It has been discovered in a certain state that the relationship between the number of ear phones demanded varies linearly with its price.
When the price per item was $ 36 ,2700 items were demanded; 
When the price was $ 53 , 2640 items were demanded.
Determine the price per item when 2648 ear phones are demanded. $___  
Above what price will the demand be zero?

jim_thompson5910 · Answer

hint: find the equation of the line through the two points (36,2700) and (53,2640)

jim_thompson5910 · Answer

oh sorry, i mixed those up

it should be (2700,36) and (2640,53)

anonymous · Answer

okay got it!!