What is the slope of a line that is perpendicular to the line whose equation is 0.5x−5y=9

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04-08-2017
Mathematics

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What is the slope of a line that is perpendicular to the line whose equation is 0.5x−5y=9

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kphung76127 kphung76127 · Answer 1 · 2017-08-04T18:49:23+02:00

kphung76127 kphung76127

04-08-2017

First find the slope of the line given by changing it into slope intercept form.
0.5x-5y=9
-5y=-0.5x+9
y=0.1x-9/5
The slope is 0.1
To find a perpendicular slope, find the negative reciprocal.
The reciprocal of 0.1 is 10
The negative of 10 is -10
Final answer: -10

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