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

For this case we have the following equations:

revenue: y = 4x

cost: y = 1 / 2x + 280

We must match both equations:

4x = 1 / 2x + 280

From here, we clear the value of x:

4x-1 / 2x = 280

7 / 2x = 280

x = (2/7) * (280)

x = 80

Answer:

jason needs to sell 80 posters so that the cost and revenue are equal