Question

will give a medal!
Find the angle the normal makes with a positive x-axis
3x-2y-1=0

5x+y-12=0

4x+3y-4=0

Answer 1

3x-2y-1=0
2y=3x-1
\[y=\frac{ 3 }{ 2 }x-\frac{ 1 }{ 2 }\]
slope of line=3/2
slope of normal to the line=-1/m=-2/3

Answer 2

so how do you work out the angle from that

Answer 3

@surjithayer