Find The Equation Of The Straight Line, Which Passes Through The Point (3, 4) And Whose Intercept On y-axis Is Twice That On x-axis.

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Question

Find the equation of the straight line, which passes through the point (3, 4) and whose intercept on y-axis is twice that on x-axis.

Solution

Correct option is

2x + y = 10

Let the equation of the line be

                            

According to the question b = 2a

∴ from (i) equation of line will become

                          

Since line (ii) passes through the point (3, 4)

  

∴  from (ii), equation of required line will be

2x + y = 10.

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