Answer
$30\ units^2$
Work Step by Step
Since we are told the figure is a rectangle, it is only necessary to find the length of two sides. We can see that two points have the same x-coordinate and different y-coordinates, while the other two points have the same y-coordinate and different x-coordinates.
Find the length of a vertical segment using the Ruler Postulate and y-coordinates.
$d=|5-(-1)|=|6|=6$
Find the length of a horizontal segment using the Ruler Postulate and x-coordinates.
$d=|-2-3|=|-5|=5$
The rectangle has a height of 6 units and a base of 5 units. Use the formula for the area of a rectangle.
$A=bh=5(6)=30$