To solve this problem we need to draw the figure using the given coordinates.
As you can observe in the drawing, the points form a right triangle, so its area is defined by
[tex]A=\frac{1}{2}bh[/tex]Where b is the base length and h is the height length, which is 4 and 6 respectively. So, using this information, we solve
[tex]A=\frac{1}{2}(4)(6)=\frac{1}{2}24=12[/tex]