Question

the amount of revenue in dollars y that jason receives from selling x posters is given by the equation y =4x. the cost of producing x posters in given by the equation y =1/2 x + 280. how many posters does joson need to sell so that the cost and revenue are equal?

Answer 1

80 posters.
Both equations are equal to y, so you can set them equal to each other
(4x=1/2x+280). Then you solve for x with 3.5x=280, divide by 3.5, and get x=80. Hope this helps :)