Answer:

Step-by-step explanation:
Hi there!
First, let's calculate the slope of line g.


So, the slope of line g is 
Now let's identify the slope of line h.
We are given that line h is perpendicular to line g.
Now, perpendicular lines have slopes that are opposite reciprocals.
This means we take a number, flop it over, and change its sign.
The slope of line g is

Now, we flop it over:

Then, we change its sign:

Thus,
is our final answer.
Hope it helps! Enjoy your day! (:
