Answer: y - 8= -1/2(x + 8)
Explanation:
The point slope form is:

y = y coordinate of second point
y1 = y coordinate of point one
m = slope
x = x coordinate of second point
x1 = x coordinate of point one
To find the slope from the two coordinates, you use
. That is the change in y over the change in x.
In this case, the slope is -8/16 which simplifies to -1/2.
Now we can plug in our numbers to put into point-slope form.
y - 8= -1/2(x + 8)