Determining if a Relation is a Function

The second quadrant is the part of the coordinate system where the $x$-coordinates are negative and the $y$-coordinates are positive. The point in question is, thus, in the upper left part of the coordinate system. The function value is $y$-coordinate of that point.

Therefore, the function value for the point in the second quadrant, is $9.$

The fourth quadrant is the part of the coordinate system in where the $x$-coordinates are positive and the $y$-coordinates are negative. Therefore, the point is the one to the right. The $x$-value can be found on the $x$-axis.

The $x$-value of the point in the fourth quadrant is $3.$