To create the rectangle, you will need the ordered pair (7,3). The first number on the ordered pair is where the point is positioned on the x-axis. Think of it as the horizontal number line. For the second number in the ordered pair you should think of where the point is located on the y-axis. Think of this as the vertical number line.
Go over 7 (first), and then go up 3 (second) to plot the last point.