SOLUTION: 17. Solve the system by graphing. 3x + y = –1 9x + 3y = –3

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Question 43733: 17.
Solve the system by graphing.
3x + y = –1
9x + 3y = –3


Answer by aaaaaaaa(138)   (Show Source): You can put this solution on YOUR website!


Let's start with the first equation, getting it as a function of y:



Second:





Are you sure the equation is right? For any value of x, we can calculate -3x - 1 to get y. See the graph, any point in it is a solution:

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