Recently, while working on some math homework, Carmen and Mario got into a little argument. During the dispute, a part of their assignment was destroyed. All that remained of one
particular problem is shown below.

Carmen was furious. “Way to go, Mario! Now there is no way to get this problem correct! We don't
even know what f(x) is.”
“Wait a minute!” Mario quickly responded. “I’m pretty sure we can solve this anyway.”
Carmen shook her head.
Who is correct? Explain completely why and what the other person might be forgetting.

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.