1. The problem asks for the distance between points U(-9, 5) and V(-9, -8). 2. Since both points have the same x-coordinate, the distance is the vertical distance between their y-coordinates. 3. The formula for vertical distance when x-coordinates are equal is: $$\text{Distance} = |y_2 - y_1|$$ 4. Substitute the y-values: $$| -8 - 5 | = |-13| = 13$$ 5. Therefore, the distance between points U and V is 13 units.