SOLUTION: please help me solve this question: give the slope of a line perpendicular to the given line y = x-3

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Question 176196: please help me solve this question: give the slope of a line perpendicular to the given line y = x-3
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Perpendicular lines have slopes that are negative reciprocals.
m%5B1%5D%2Am%5B2%5D=-1
From this line,
y=x-3
The slope is 1.
m%5B1%5D%2Am%5B2%5D=-1
1%2Am%5B2%5D=-1
m%5B2%5D=-1
A line perpendicular to y=x-3 will have a slope of -1.