Mariel, Kim and Dia are friends. They love to rent electronic scooters on the street. Last Saturday, they had a race around the city. The GPS on the scooters kept track of the time and distance they traveled. When they got home, they were able to download a graph of their face. Mariel is the dotted line, Kim is the dashed line, and Dia is the solid line.​

For range i think it’s area

First locate the turning point (vertex) of the graph. which is at the coordinates x=5 and y=9 or (5; 9).to determine whether it's a maximum or mininum value, you have to discern whether the vertex's y-value is the highest value or lowest value the graph can reach. since the vertex's y-value, 9 is the highest value the graph can reach, it will be a maximum.another basic way to determine whether the vertex's value is max or min is to see if the graph is smiling or sad. if it's smiling, the turning point/vertex would be a minimum, while a sad parabola would have a maximum y-value at the vertex.