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Find the equation of the line parallel to y-axis and drawn through the point of intersection of the lines x– 7y + 5 = 0 and 3x + y = 0. - Mathematics

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प्रश्न

Find the equation of the line parallel to y-axis and drawn through the point of intersection of the lines x– 7y + 5 = 0 and 3x + y = 0.

योग
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उत्तर

Given lines

x – 7y + 5 = 0  …(i)

3x + y = 0    ... (ii)

From equation (ii),

y = -3x

Putting the value of y in equation (i),

x – 7(−3x) + 5 = 0

or 22x + 5 = 0

x = `(-5)/22`

Now y = -3x = `-3((-5)/22)`

= `15/22`

The equation of the line that passes through `((- 5)/22, 15/22)` and is parallel to the y-axis is x = `(- 5)/22`

or 22x + 5 = 0

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अध्याय 9: Straight Lines - Miscellaneous Exercise [पृष्ठ १७३]

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एनसीईआरटी Mathematics [English] Class 11
अध्याय 9 Straight Lines
Miscellaneous Exercise | Q 5. | पृष्ठ १७३

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