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Mathematics
OpenStudy (anonymous):

Write an equation for any line perpendicular to y = (2/5)x - 4

jimthompson5910 (jim_thompson5910):

Flip the slope and change the sign to go from 2/5 to -5/2 So the equation of any perpendicular line is \[y=-\frac{5}{2}+c\] where c is some constant

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