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What is the equation of a line that goes through the point (3, 12) and is perpendicular to the line given by the equation y = -1/3x - 7? y = -3x - 12 y = -1/3x + 6 y = 3x + 3 y = (1/3x) - 6
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What is the equation of a line that goes through the point (3, 12) and is perpendicular to the line given by the equation y = -1/3x - 7?

y = -3x - 12
y = -1/3x + 6
y = 3x + 3
y = (1/3x) - 6

User Bryji
by
7.8k points

1 Answer

3 votes
Y=3x+3

Perpendicular lines have the product of their gradients =-1
since gradient of line 1 =-1/3
then gradient of line 2 is
-1/3*m=-1
m=3
User Robbin Benard
by
8.0k points
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