Two lines have slopes of and . Are these lines parallel, perpendicular, or neither?
Options
A
Parallel
B
Perpendicular
C
Neither
D
Cannot be determined
Answer & Analysis
Answer
B
Analysis
Question Analysis
This question tests the understanding of the condition for perpendicular lines, which is that the product of their slopes must be -1.
Key Concept Explanation
The slope of a line in the form is given by . Two lines are perpendicular if the product of their slopes is -1. (
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