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Exam-Style Question on Simultaneous EquationsA mathematics exam-style question with a worked solution that can be revealed gradually |
Question id: 560. This question is typical of the type of question in a IGCSE Core examination. The use of a calculator is allowed.
Nora and Dora are trying to solve the following simultaneous equations by finding the intersection of their graphs.
$$y+x=6$$ $$y-x=1$$Here are their graphs:
(a) Who has plotted the graphs most correctly?
(b) What is the correct solution?
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Drag this panel down to reveal the solution
If you need more practice try the self-checking interactive exercises called Using Graphs.
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