Mathematics, 16.07.2019 00:40, kcarstensen59070

The product of the slopes of two non-vertical perpendicular lines is always -1. it is not possible for two perpendicular lines to both have a positive slope because the product of two positives is positive. so for the product of the slopes to be -1, one of the slopes must be positive and the other negative. select the best answer from the choices provided
true or false

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The product of the slopes of two non-vertical perpendicular lines is always -1. it is not possible f...

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