There are 2 methods you are taught in Middle School.
Elimination and Substitution.
For the first one a = 2.5. For the second one m = 4. For the third one m = -4
You need to show the diagram
Trere are two correct answers.That are (-1,-7) and (-6,-14)
Since its telling you that x is the number of years and the question is "How much does the cost of milk increase EVERY YEAR" then you can conclude that the cost is increasing by 0.25 each year
