Answer:
I dont know if this is right, so please correct me if I am wrong!!!
Explanation:
basically we want to find the unit price first: :)
4.50/10= 0.45
then the equation:
every pound of aluminum is 45 cents
so: Y= 0.45x
the graphing part is something I can't solve because I dont have a sketchpad, sorry!!!
-a friendly 8th grader :)