I'll give brainlest to whoever explains it right

Given the graph below state whether or not the relation is a function, and give the domain and range.

(mc 02.03) what set of reflections and rotations would carry rectangle abcd onto itself? reflect over the y-axis, reflect over the x-axis, rotate 180° rotate 180°, reflect over the x-axis, reflect over the line y=x reflect over the x-axis, rotate 180°, reflect over the x-axis rotate 180, reflect over the y-axis, reflect over the line y=x

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square