Mathematics
A point that lies on the line 2x - 3y = 4 can be taken as :
(-5, -2)
(-5, 2)
(5, 2)
(5, -2)
Graphical Solution
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Answer
Given equation: 2x - 3y = 4
1. For (-5, -2):
Substitute x = -5 and y = -2
L.H.S. : 2 (-5) - 3 (-2)
= -10 + 6
= -4
R.H.S. = 4
Since, L.H.S. ≠ R.H.S., (-5, -2) does not lie on the line.
2. For (-5, 2):
Substitute x = -5 and y = 2
L.H.S. : 2 (-5) - 3 2
= -10 - 6
= - 16
R.H.S. = 4
Since, L.H.S. ≠ R.H.S., (-5, 2) does not lie on the line.
3. For (5, 2):
Substitute x = 5 and y = 2
L.H.S. : 2 5 - 3 2
= 10 - 6
= 4
R.H.S. = 4
Since, L.H.S. = R.H.S., (5, 2) lies on the line.
4. For (5, -2):
Substitute x = 5 and y = -2
L.H.S. : 2 5 - 3 (-2)
= 10 + 6
= 16
R.H.S. = 4
Since, L.H.S. ≠ R.H.S., (5, -2) does not lie on the line.
Hence, option 3 is the correct option.
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