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If the equation 12x^2 + 7xy - py^2 - 18x...

If the equation `12x^2 + 7xy - py^2 - 18x qy + 6 = 0` represent two perpendicular lines, then the value of p and q are :

A

12,1

B

12,-1

C

`12,23/1`

D

`12, -23/2`

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The correct Answer is:
A, D
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PATHFINDER-CARTESIAN COORDINATES AND STRAIGHT LINE-QUESTION BANK
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