Short Answer

Perpendicular Rail Alignment for Solar Panels

A solar panel installer is verifying the alignment of two mounting rails on a roof. The paths of the rails are represented by the equations y=3x+2y = -3x + 2 and x3y=4x - 3y = 4. To confirm that the rails are perpendicular, the installer solves the second equation for yy to identify its slope. What is the numerical value of the slope for the rail represented by x3y=4x - 3y = 4?

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Updated 2026-05-25

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