What must be true about the slopes of two perpendicular lines, neither of which is vertical?
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Mathematics, 03.12.2019 04:31 leo4687
What must be true about the slopes of two perpendicular lines, neither of which is vertical?
select one:
a. the slopes have product -1.
b. one of the slopes must be 0.
c. the slopes have product 1.
d. the slopes are equal.
Answers: 3
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