Respuesta :
Perpendicular means negative reciprocal.
4x+5y=-2
5y = -4x - 2
y = -4/5x - 2
the negative reciprocal of -4/5 is 5/4. (Negative times a negative is a positive)
4x+5y=-2
5y = -4x - 2
y = -4/5x - 2
the negative reciprocal of -4/5 is 5/4. (Negative times a negative is a positive)