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27 votes
27 votes
Hurry please

y = -2/3x + 2
y = 3/2x + 9
These lines are...
1.Perpendicular
2.Parallel
3.Neither

User Ezakto
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2.6k points

2 Answers

29 votes
29 votes

Answer:

perpendicular

perpendicular lines have slopes that are negative reciprocals of one another. if a slope of a line was 5, then the slope of a line perpendicular to it would be -1/5, for example.

User Merov
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22 votes
22 votes

Answer: Perpendicular

The slopes -2/3 and 3/2 multiply to -1, which is sufficient info that the lines are perpendicular. Perpendicular slopes always multiply to -1 assuming neither line is vertical nor horizontal.

Note how -2/3 is the negative reciprocal of 3/2, and vice versa.

User Gamopo
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2.9k points