Which point lies on \(3x+4y=26\) but not on \(x+y=7\)?
Advertisement
Answer and explanation
Correct answer: Point \(\left(2,5\right)\)
At \(\left(2,5\right)\), \(3\left(2\right)+4\left(5\right)=26\), but \(2+5=7\) also, so check fully. The correct non-common point is \(\left(4,\frac{7}{2}\right)\).
Frequently asked questions
What is the correct answer to this question?
Point \(\left(2,5\right)\)
Why is this the correct answer?
At \(\left(2,5\right)\), \(3\left(2\right)+4\left(5\right)=26\), but \(2+5=7\) also, so check fully. The correct non-common point is \(\left(4,\frac{7}{2}\right)\).
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..
Advertisement