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Solutions of Linear equation in 2 variables on a graph

Choose the op...

Question

Choose the option which describes the equation of the line shown in the graph.

A

2x + y = 0

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B

2x - y = 0

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C

x + 2y = 0

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D

x - 2y = 0

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Solution

The correct option is B 2x - y = 0
Substitute the values one by one in the given options. The one which is satisfied by these values is the equation of the line on the graph.
2x - y = 0
2x = y
at x = 1, y = 2
at x = -1, y = -2
$∴$ Graph of equation 2x - y = 0 is shown in the figure.

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