Exam-style question
Try this first
After solving simultaneous equations, what final check confirms the answer is complete?.
- A.B4: connect the result back to the original question
- B.Use any familiar GCSE calculation even if it ignores solving simultaneous equations in two variables by elimination…
- C.Write only the final answer without showing the mathematical method
- D.Change the notation or restrictions to make the algebra look simpler
Model answer
What a good answer should say
- The correct answer is B4: connect the result back to the original question.
- Each ordered pair must be substituted or checked against both original equations, and the answer should state all valid solution pairs requested by the problem.
This answer is tied to the objective: B4 Solve simultaneous equations in two variables by elimination and by substitution, including one linear and one quadratic equation..
Explanation
Why this works
Use the explanation to connect the worked answer back to B4 Solve simultaneous equations in two variables by elimination and by substitution, including one linear and one quadratic equation..
The correct option, B4: connect the result back to the original question, is supported because simultaneous-equation answers are complete only when the values satisfy both equations and match the requested form. The distractors stop too early or treat one equation as if it were enough.
Maths method check
- Topic focus: Pure Mathematics.
- Question style: practice.
- Reasoning demand: analysis.
- Check the operation, notation, units, and final answer form against the question before moving on.
Common mistake
No common mistake is linked to this question yet.