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Let PS be the median of the triangle wit...

Let PS be the median of the triangle with vertices `P(2,""2),""Q(6,-1)""a n d""R(7,""3)` . The equation of the line passing through `(1,-1)` and parallel to PS is (1) `4x-7y-11""=""0` (2) `2x+""9y+""7""=""0` (3) `4x+""7y+""3""=""0` (4) `2x-9y-11""=""0`

Text Solution

Verified by Experts

slope of line `PS= (2-1)/(2- 13/2)`
`= -2/9`
slope of line `AB= m= -2/9`
point `(1,-1)`
`y- y_1 = m(x- x_1)`
`y + 1 = - 2/9 (x-1)`
`9y + 9 = -2x+2`
`2x + 9y + 7=0`
...
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