Thread: What does the problem mean?

The points (– 2, 1) and (–5, 4) are reflected with respect to the
y – axis. What is the area of the figure formed by the two points
and their reflections?

A point reflected across the -axis becomes .

Hello, rcs!

The points P(–2, 1) and Q(–5, 4) are reflected with respect to the y–axis.
What is the area of the figure formed by the two points and their reflections?

Think of the y-axis as a mirror.

Code:

                |
                |
     (-2,1)     |     (2,1)
       P* - - - + - - - *P'
        :       |       :
      --+---+---+---+---+--
       -2  -1   |   1   2
                |