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Question

Identify the points which lie on the line 3x + 4y = 7.


A

3x - 2y = 5

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B

2x + y = 17

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C

x + 2y = 17

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D

x - 2y = 4

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Solution

The correct options are
A

3x - 2y = 5


B

2x + y = 17


D

x - 2y = 4


If a point lies on a line, the coordinates should satisfy the equation of the line. So any point lying on the line 3x + 4y = 7 is a solution.
Let's substitute the points given in the options in 3x + 4y = 7 to check which of them satisfy the equation.
(1,1):
3x+4y=73×(1)+4×(1)=7=RHS

(0,74):
3x+4y=73×(0)+4×(74)=7=RHS

(0,7):
3x+4y=73×(0)+4×(7)=28RHS

(73,0):
3x+4y=73×(73)+4×(0)=7=RHS


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