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प्रश्न
Find the slope of a line parallel to MN, if the coordinates of M and N are (4,9) and (-2,3) respectively.
योग
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उत्तर
Slope of line MN = `("y"_2 - "y"_1)/("x"_2 - "x"_1)`
= `(3 - 9)/(-2 - 4) = (-6)/(-6)`
= -1
Slope of line parallel to MN = Slope of MN = 1
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