Remember, one of the ways we can find the slope is
Where
is the amount of units we move up or down (vertically)
is the amount of units we move left or right (horizontally)
So, given the slope
how many units do we move vertically?
Let's look at the slope.
As we can see, the Rise is -1. (Answer)
Thus, we move
-1 units vertically. (1 unit down)
Hope it helps you.
~Just a felicitous teen willing to help
#HaveANiceDay