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प्रश्न
Find the slope of a line parallel to AB, if the coordinates of A and B are (3,-1) and (-7,5) respectively.
योग
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उत्तर
Slope of line AB = `("y"_2 - "y"_1)/("x"_2 - "x"_1)`
= `(5 + 1)/(-7 - 3) = - 3/5`
Slope of line parallel to AB
= Slope of AB
= `-3/5`
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