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Question
Find the slope of a line perpendicular to the foloowing line `"x"/2 + "y"/3 = 4/3`
Solution
When two lines are perpendicular to each other the product of their slope is -1.
i.e m1 x m2 = -1
`"x"/2 + "y"/3 = 4/3`
3x + 2y = 8
y = -`3/2"x" + 4`
m1 = `-3/2`
Slope of required line (m2) = `-1/("m"1) = 2/3`
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