color(blue)(2y+3x-4=0)" the equation of the blue line"
"let's rearrange the equation of the blue line"
color(blue)(2y=-3x+4)
color(blue)(y=-3/2 x+2) " (1)"
y=m x+n " represents the standard form of the line"
"where m is slope of line"
m=-3/2
"let the slope of the red line perpendicular to the blue line be " m_1
m*m1=-1
-3/2*m_1=-1
m_1=2/3
"now we can use the slope-intercept form of the equation of line"
color(red)(y-y_1=m(x-x_1)
color(red)(y-3=2/3(x+2))
color(red)(y-3=2/3 x+4/3)
color(red)(y=2/3 x+4/3+3)
color(red)(y=2/3 x+13/3)
"or "
"let's multiply both sides of equation by 3"
3y=2x+13
-2x+3y=13