So I need help with setting up the equation to graph it (eg. y = mx + b) but with different variables. In a factory, Machine A Produces 60 Cornflakes boxes per hour and Luckycharms at 70 boxes per hour. Machine B produces produces 40 cornflake boxes per hour and Luckycharms 40 per hour. It costs $50 a hour to run machine A and $30 a hour to run Machine B. Machine A cannot run more then 9 hours a day and Machine B cannot run more then 10 hours a day. Atleast 240 cornflakes boxes need to be made and 140 lucky charm boxes need to be made. So, I setup my variables: Cornflakes = C Luckycharms = L And here are my equations (there cannot be more than 4 constraints): 60C + 70L <= 9 (machine A) 40C + 20L <= 10 (machine b) C >= 240 L >= 140 My equation is wrong though. If I solve and graph it (L = Y, C = X), it does not come out correctly. Can someone help?