Respuesta :

JungleBear

Answer:

4

Step-by-step explanation:

The slope of the green line is the negative reciprocal of that of the red line:

-1 / (-1/4), or just 4

altavistard

Answer:

+4

Step-by-step explanation:

The slopes of perpendicular lines are negative reciprocals of one another.

Here, with one slope being -1/4, the slope of a perpendicular line would be +4.