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MATHEMATICS

JAMB 2001 - Question 30

Mathematics 2001 JAMB Past Questions - Question 30: Find the value of p if the line joining (p,4) and (6,-2) is perpendicular to the line joining (2,p)and(-1,3)

Choose the correct answers from the options given.

Find the value of p if the line joining (p,4) and (6,-2) is perpendicular to the line joining (2,p)and(-1,3)

A: 0

B: 3

C: 4

D: 6

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Correct Answer

Explanation

from m₁ =¯ˡ/m;6/p-6 =¯ˡ/p-3/36/p-3=-3/p-3;6p-18=-3p+189p = 36; p =4