Answer:
A = 6 units ^2
Explanation:
Let the base of the triangle be DE. Its length is 3 units
Let the height of the triangle be from DE to point F. That is 4 units ( -3 to 1 is 4 units)
The area of the triangle is
A = 1/2 bh
=1/2 (3)(4)
A = 6 units ^2