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the lines graphed below are perpendicular. The slope of the red line is 4. what is the slope of the Greenline?

the lines graphed below are perpendicular. The slope of the red line is 4. what is-example-1

1 Answer

9 votes
D.

Perpendicular line are negative reciprocal to each other. Meaning the 4 can be turned into 4/1 (easier to see) and flip the fraction and then add a negative sign. So -1/4.
Parallel lines have the same slope because the lines never meet.
User Adamarla
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