Pair Of Linear Equations In Two Variables
Question 4:
Which of the following pairs of linear equations are consistent/ inconsistent? If consistent, obtain the solution graphically:
Answer:
(i)x + y = 5
2x + 2y = 10
Since ,
Therefore, these linear equations are coincident pair of lines and thus have infinite number of possible solutions. Hence, the pair of linear equations is consistent.
x + y = 5
x = 5 − y

x
4
3
2
y
1
2
3
And, 2x + 2y = 10

x
4
3
2
y
1
2
3
Hence, the graphic representation is a...
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