Theequationoflinefis

y
=
8/9x
+ 2
. Line
gisperpendicularto
f . What
istheslopeofline
g ?

The slope of line f is 8/9.

Perpendicular lines have slopes that are negative reciprocals of each other.

So, the slope of line g is the negative reciprocal of 8/9, which is -9/8.