Respuesta :

Answer:

[tex]\frac{1}{2}[/tex]

Step-by-step explanation:

Given the slope of a line m then the slope of a line perpendicular to it is

[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{-2}[/tex] = [tex]\frac{1}{2}[/tex]