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Determine whether the following lines are parallel, perpendicular, or the same line. y = x + 1 and y = - x – 14 Answer Parallel Perpendicular Same Line None of these
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i chose None of these ..am i right?
your not not wrong :)
perpendicular
parallel have the same slope; these do not perps have the property that slope*slope = -1
since 1*-1 = -1 these are perps
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perpendicular as the slope is the negative inverse in the two lines!!!
another way to view it is if the dot product of the vector of the slopes =0 then they are perps 1, 1 -1, 1 ----- -1+1 = 0 ; they is perped
so perpendicular?
Is it peeerrrrpppeeennndddiiiccccuuullaaaarrr?
of course it is many of us have said it???
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okae Lol well thanks .
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