To find the number of bottles of lotion that she has left, we need to find the point of the line where the number of gift baskets is 2.
That point is shown in red in the following image:
We are told that she assembled 2 gift baskets. The point where the number of gift baskets is 2 is the red point in the previous image.
Since we are looking for the number of bottles remaining, we need to find the corresponding number in the vertical axis for the red point, and that will give us the number of bottles remaining after making 2 gift baskets.
We draw a line from the red point to the vertical axis:
As you can see, the corresponding point on the vertical axis is also 2.
Thus, 2 bottles of lotion are remaining.
Answer: 2