- - y --s • I ' I \ --4 I \ --3 I \ --2 \ I --1 /\ X u 1 1 2 6 7 8 9 3/ 4' -L1 \ _lz. J • The graph of a system of linear equations is shown. The solution to the system is (x,y). What is the value of x?
Correct answer: 4 (parsed from the explanation — this source omits an answer key for this item)
Explanation
The correct answer is 4. A solution to a system of equations must satisfy each equation in the system. It follows that if ^x,yh is a solution to the system, the point ^x,yh lies on the graph in the xy-plane of each equation in the system. According to the graph, the point ^x,yh that lies on the graph of each equation in the system 4,1 4,1 is ^ h. Therefore, the solution to the system is ^ h. It follows that the value of x is 4.
Loading…
Searched on YouTube by topic, not by question text. Open this search on YouTube →
Extracted from PDF layout: equations, figures and tables do not survive intact. Use the original PDFs for anything the text renders poorly. SAT® is a trademark registered by the College Board, which is not affiliated with and does not endorse this project.