Respuesta :

perpendicular lines, slope is opposite and reciprocal
y = 8x + 5 has slope = 8
so 
perpendicular line slope = -1/8

answer
-1/8

Answer: [tex]\dfrac{1}{8}[/tex]

Step-by-step explanation:

The given equation of a line : [tex]y = 8x + 5[/tex]

We know that general Slope-intercept form of equation is given by :-

[tex]y=mx+c[/tex], where m is the slope of the line.

When we compare the given equation the general slope intercept form of equation , we get

Slope of line = 8

We know that the product of slopes of two perpendicular line is -1.

Let m be the slope of  line that is perpendicular to the line [tex]y = 8x + 5[/tex], then we have

[tex]-8\times m=-1\\\\\Rightarrow\ m=\dfrac{1}{8}[/tex]