The smallest x coordinate means that we're looking for the leftmost point.
Visually, we can tell that it's point B.
To prove it, we know the x coordinate for B is 1. 1 is less than all other x coordinates (2, 5, and 6)
Final answer: B
|x − 37500| ≤ 4500; The salaries range from $33,000 to $42,000