Asked by Anonymous

Find a vector perpendicular ( = normal) to the line 2y = 5-3x in the xy-plane.
Answered by oobleck
the line has slope -3/2
So, what is a vector with slope 2/3 ?
Answered by Anonymous
2i-3j
Did you divded by 2?-->(5-3x)/2 -->y=5/2-3x/2-->m=-3/2 right? How does the slope -3/2 become 2/3?
Answered by oobleck
if two lines are perpendicular, their slopes are negative reciprocals.
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