Your task is to construct the graph of the equation
f(x)=f(y), which also consists of a number of
line segments. For each line segment in this graph,
enter the coordinates of its endpoints into the two
answer boxes below. If your answer is correct, the
line segment will be added to the graph below. You will
be scored based on the number of attempts it takes you
to complete the graph.

Trial number 1

Add the following line segment PQ to the graph of
f(x)=f(y)