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10. Straight Lines
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Q29 of 51 Page 10

The perpendicular from the origin to a line meets it at the point(-2, 9). Find the equation of the line.


The perpendicular from the origin O(0,0) meets the line AB at A(-3, 9)
 

Hence, mOA = = -

⇒ mAB =

Now, equation of the line will be

y – 9 = (x+2)

9y – 81 = 9x + 5

9x – 9y + 85 = 0

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Questions · 51
10. Straight Lines
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