Find the gradient of a line which is perpendicular to the line with the equation 3x + 2y + 1 = 0
a
3/2
b
2/3
c
-2/3
d
-3/2
Explanation
Correct Option
bVideo Explanation
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Exon002
1 year ago
3x + 2y + 1 = 0
2y = -3x -1
y = (-3/2)x -1/2
therefore the slope m1 = -3/2
remember m2 = -1/m1
therefore m2 = -1/-3/2
m2 = -2/-3
m2= 2/3
