posted by alex .
When the Senior class decided to order T-shirts, they were quoted a price of $7.50 per shirt plus a setup fee. The total cost for 300 shirts was $2,450. Write an equation in the form y = mx + b that represents the cost, y, for x shirts.
m=7.50 / shirt
Since we know that
Write an equation in the form y = mx + b for the line that passes through the point(-5, -1) and has a slope of -2.