a company finds it can produce 15 heaters for $4300, while producing 20 heaters costs $5500. Express y, as a linear function of the number of heaters, y. Determine the cost to produce 30 heaters.

Question

a company finds it can produce 15 heaters for $4300, while producing 20 heaters costs $5500.  Express y, as a linear function of the number of heaters, y.  Determine the cost to produce 30 heaters.

y = _________

Cost to produce 30 heaters $_________

Help I'm not sure how to solve this problem.  Thank you

bobpursley · Answer

y=mx+b 4300=m*15+b 5500=m*20+b subtract the first from the second 1200=5m m= you solve it. THen put it in either equation, and solve for b.

Lee · Answer

Thank you so much. I can't believe it was so simple..:):)