SOLUTION: What must be true about the slopes of two perpendicular lines, neither of which is vertical? a. The slopes are equal. b. The slopes have product 1. c. the slopes have product -1

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Question 466356: What must be true about the slopes of two perpendicular lines, neither of which is vertical?
a. The slopes are equal.
b. The slopes have product 1.
c. the slopes have product -1.
d. One of the slopes must be 0.
Found 2 solutions by jorel1380, richard1234:
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
a.)If the lines are parallel, their slopes are equal..

Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
c) The slopes have product -1. For example, two lines with slopes 3/4 and -4/3 are perpendicular.