For the first line in the system: The line slants sharply down from left to right. The line passes through

Question

The graph of a system of linear equations is shown. The solution to the system is $(x, y)$ . What is the value of $x$ ?

Accepted Answer

The correct answer is 4 . A solution to a system of equations must satisfy each equation in the system. It follows that if x , y is a solution to the system, the point x , y lies on the graph in the xy -plane of each equation in the system. According to the graph, the point x , y that lies on the graph of each equation in the system is 4 , 1 . Therefore, the solution to the system is 4 , 1 . It follows that the value of x is 4 .

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