Answer:
14 [tex]u^2[/tex]
Step-by-step explanation:
The attached image shows the diagram of the triangle drawn on the Cartesian plane.
We can see that it has the following measures:
base: [tex]b=7u[/tex]
height: [tex]h=4u[/tex]
the area of a triangle is given by the formula:
[tex]A=\frac{b*h}{2}[/tex]
substituting the values:
[tex]A=\frac{(7u)(4u)}{2}\\ \\A=\frac{28u^2}{2} \\\\A=14u^2[/tex]
the area, in square units, of the triangle is 14