What is the slope of a line that is perpendicular to the line y=8x+5

-1/8

Step-by-step explanation:

Perpendicular slopes are negative reciprocals

The slope of y=8x+5 is 8, because it is in slope intercept form: y=mx+b form, where m is the slope.

Negative:

8/1--> - 8/1

Reciprocal:

Flip the numerator and denominator

-8/1--> - 1/8

So, the perpendicular slope of 8 is - 1/8