C is the correct option
Here, we want to selct which of the plotted points in the graphs correctly represent the given points
The given points are (2,21/2) and (-1 1/2,-4)
As we can see on the graphs, there are four different marked points
We just need to select the graph that contains the points
What the point (2, 2 1/2) means is that we have point 2 on the x-axis and trace point 2 1/2 on the y-axis
This point is missing in the first two options
However, on the third option C, we can see this option
We can check if the second option is there too
(-1 1/2 , -4)
We have -1 1/2 on the x-axis and -4 on the y-axis
We can see this on the third option too
So option C is our correct answer