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OpenStudy (anonymous):
What is the equation of the line that is perpendicular to -x + y = 7 and passes through (-1, -1)? Possible answers: -x + y = 2 -x – y= 2 x - y = 2 -x - y = 0 x + y = 0
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OpenStudy (anonymous):
the slope of a perpendicular line is the negative reciprocal of the slope of the given line -x + y =7, so the slope is 1. Negative reciprocal of this is -1. therefore, you have x+y=b solve your b using your point. you'll get: x + y =0
OpenStudy (anonymous):
Thank you!
OpenStudy (anonymous):
np :)
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