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brilliants [131]
3 years ago
10

Line A is perpendicular to line B. The slope of line A is -1/9 what is the slope of line b?

Mathematics
2 answers:
fredd [130]3 years ago
8 0
The slope of the line is 9
Pani-rosa [81]3 years ago
4 0
\bf \stackrel{\textit{perpendicular lines have \underline{negative reciprocal} slopes}}
{\stackrel{slope}{-\cfrac{1}{9}}\qquad \qquad \qquad \stackrel{reciprocal}{-\cfrac{9}{1}}\qquad \stackrel{negative~reciprocal}{+\cfrac{9}{1}}\implies 9}
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