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Margaretta Rath

Lvl 10
4y ago

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How do you use slope to determine if two lines are perpendicular?

You have to know the slopes of both lines. -- Take the two slopes. -- The lines are perpendicular if (one slope) = -1/(the other slope), or the product of the slopes equals to -1.


How do you calculate parallel and perpendicular lines in a given plane?

Take any two lines and look at their slopes. -- If the slopes are equal, then the lines are parallel. -- If the product of the slopes is -1, then the lines are perpendicular.


When is the product of the slopes of two perpendicular lines not equal to -1?

When the perpendicular lines are horizontal and vertical.


If the product of the slopes of two lines equals negative 1 then the lines?

Are perpendicular.


What must be true about the slopes of 2 perpendicular lines?

The slopes of two perpendicular lines are negative inverses of each other. In other words, the two slopes when multiplied together equal -1.


If the product of the slopes of two lines equals -1 then the lines?

Are perpendicular to one another.


If the lines have slopes that are negative reciprocals?

If you have two lines that have negative recipricals (1 and -1 for example), the lines are perpendicular.


How do slopes of perpendicular lines compare?

Slopes of perpendicular lines will be opposite reciprocals. This means that the slopes have opposite signs and that one is 1/ the other. For example, 2 and -1/2.


Is it possible for two lines with positive slopes to be perpendicular?

Is it possible for two lines with positive slopes to be perpendicular?


What are perpindicullar lines?

Perpendicular lines * Two lines that create an angle of 90 degrees and the product of their slopes is -1.


What are perpindicullar?

Perpendicular lines * Two lines that create an angle of 90 degrees and the product of their slopes is -1.


In a coordinate plane two nonvertical lines are what if and only if the product of their slopes is -1?

perpendicular