Find the gradient of a line which is perpendicular to the...
Find the gradient of a line which is perpendicular to the line with the equation 3x + 2y + 1 = 0
3/2
2/3
-2/3
-3/2
Correct answer is B
3X + 2Y + 1 = 0
2Y = -3X - 1
−32X−12
Gradient of 3X + 2Y +1 = 0 is -3/2
Gradient of a line perpendicular to 3X + 2Y + 1 = 0
=−1÷32=−1×−23=23
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