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mand m2 are the slope of two perpendicular lines, if
  • a)
    m1.m2 = 1
  • b)
    m1= m2
  • c)
    m+ m2 = 0
  • d)
    1 + m1.m2 = 0
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
m1and m2are the slope of two perpendicular lines, ifa)m1.m2= 1b)m1= m2...
Explanation:

Two lines are perpendicular if the product of their slopes is -1. So, if m1 and m2 are the slopes of two perpendicular lines, then:

m1.m2 = -1

Rewriting this equation, we get:

1/m1 . 1/m2 = -1

Multiplying both sides by m1.m2, we get:

m2/m1 + m1/m2 = 0

This can be simplified as:

m1.m2 = 0

Therefore, the correct answer is option D.
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Community Answer
m1and m2are the slope of two perpendicular lines, ifa)m1.m2= 1b)m1= m2...
2 lines r perpendicular if product of their slopes is -1.... m1.m2 = -1 or 1+m1.m2 =0
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