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Question
Find the slope of the line which is parallel to x + 2y + 3 = 0
Solution
x + 2y + 3 = 0
2y = −x − 3
`y = (-1)/2x -3/2`
Slope of this line = `(-1)/2`
Slope of the line which is parallel to the given line = Slope of the given line = `(-1)/2`
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