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Find parametric equation of a line with a slope of -2 and passes through (-10,-20)
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Find parametric equation of a line with a slope of -2 and passes through (-10,-20)

User Katrina
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y- y_(0) =m(x- x_(0) ) \\ m= (y_(1)- y_(0))/(x_(1)- x_(0) ) \\ y-(-20)= (-2)(x-(-10)) \\ y+20=-2x-20 \\ y=-2x-40
User Lku
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