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What is the correct graphical solution of \(x-2y=-4\) and \(3x+y=11\)?
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Answer and explanation
Correct answer: Point \(\left(\frac{18}{7},\frac{23}{7}\right)\)
The first equation gives \(x=2y-4\). Substituting in \(3x+y=11\) gives \(y=\frac{23}{7}\) and \(x=\frac{18}{7}\).
Frequently asked questions
What is the correct answer to this question?
Point \(\left(\frac{18}{7},\frac{23}{7}\right)\)
Why is this the correct answer?
The first equation gives \(x=2y-4\). Substituting in \(3x+y=11\) gives \(y=\frac{23}{7}\) and \(x=\frac{18}{7}\).
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Pair of Linear Equations in Two Variables. Topic: Graphical method of finding solutions..
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