The height , in meters, of a point on a roller coaster track above the ground is given by the function for , where is the horizontal distance in meters from the start of the track. Which of the following is the best interpretation of the vertex of the graph of in the -plane?
The track reaches a maximum height of 8 meters.
The lowest point on the track is 10 meters above the ground.
The minimum height of the track is 8 meters, occurring at a horizontal distance of 10 meters.
The track has a height of 10 meters at a horizontal distance of 8 meters.
