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What is the slope of the line perpendicular to the equation

Y=3x+2

A) 3/2
B) 3
C) -1/3
D)1/3

User Moz Morris
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2 Answers

2 votes
A perpendicular slope is a negative reciprocal of the initial slope.
So you take the initial slope and flip the numerator and denominator (3/4 becomes 4/3, 4 is really 4/1 so it becomes 1/4)
Then you change the sign, so if it's positive it becomes negative and vice versa.
3/1 becomes -1/3
User Cardin
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6 votes
Y=3x+2 slope = 3
perpendicular, slope = -1/3

answer is C)
-1/3
User PDStat
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