1. The point (-9, 2) is reflected across the x-axis. What are the coordinates of the reflection?
2. What is the distance between the points (8,-4) and (-5, -4)?
3. What is the distance between the points (-7,-5) and (-7, -8)?
4. A truck travels from warehouse A at (-4, 8) to warehouse B at (-4, -1). If each unit represents 20 miles
and the truck is traveling 60 miles per hour, how long will it take the truck to travel this distance?