Hi Again Theresa;
Another great question!
Our first priority is to place this formula into the format of...
The y must be completely isolated.
We will divide both sides by 9...
The slope is 1/9.
The slope of the perpendicular line is -9.
The y-intercept, the value of b when x=0, may or may not be -2.
Let's plug-in the provided coordinate of (2,-5)...
If we add 18 to both sides...