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What is the equation of the straight line passing through the point (2, 3) and making an intercept on the positive y-­axis equal to twice its intercept on the positive x­- axis? 

a. 2x + y = 5 

b. 2x + y = 7 

c. x + 2 y = 7 

d. 2x – y = 1

1 Answer

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Best answer

Correct option b. 2x + y = 7

Explanation:

Equation of line is x/a + y/2a = 1

⇒ 2x + y = 2a  .....(1)

Putting (2, 3), we get 2a = 7

∴ Equation of line is 2x + y = 7

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