Verifying that $y = -5x - 4$ and $x - 5y = 5$ are Perpendicular

Verifying that $7x + 2y = 3$ and $2x + 7y = 5$ are Not Perpendicular

As an apprentice draftsperson reviewing automated CAD plans, you need to verify whether two property boundary lines intersect at a perfect 90-degree angle. Arrange the correct sequence of mathematical steps you must follow to determine if the lines are perpendicular based solely on their linear equations.

A construction worker is verifying that two walls are perfectly perpendicular using a coordinate layout. If the slopes of the lines representing the two walls are calculated and multiplied together, what must their product be to confirm they are perpendicular?

An architectural drafter is verifying the alignment of two walls on a floor plan. To confirm the walls are perpendicular using their linear equations, the drafter calculates the product of their slopes. If the walls are perpendicular, this product must equal ____.

A site surveyor is reviewing a blueprint for a commercial development where the secondary drainage pipes must be installed perfectly perpendicular to the main supply lines. To verify the plan's accuracy, match the slope of each main supply line with the slope required for its corresponding perpendicular lateral pipe.

An architectural technician is verifying a site plan. True or False: To confirm that two lines are perpendicular using their linear equations, the technician should verify that the slopes of the lines are identical.