Coordinate Geometry

Taking a scale of $1 \; cm = 1$ unit on both the axes on a graph paper,

  1. plot the points $A \left(-3, 3\right)$ and $B \left(2,2\right)$;

  2. write the coordinates of $A'$ and $B'$, the images of $A$ and $B$ respectively on reflection in origin;

  3. write the geometrical name of the figure $ABA'B'$;

  4. write the coordinates of two invariant points in Y axis in the figure.


  1. Points $A \left(-3,3\right)$ and $B \left(2,2\right)$ are plotted.

  2. $A' \left(3,-3\right)$ and $B' \left(-2, -2\right)$ are the images of $A$ and $B$ on reflection in origin.

  3. $ABA'B'$ is a parallelogram.

  4. $P \left(0, 2.4\right)$ and $Q \left(0, -2.4\right)$ are two invariant points in Y axis in the figure.