Answer:
2
Explanation:
Use the area of a triangle, given 3 points formula:
A: (x1, y1) = (0,4)
B: (x2, y2) = (2,4)
C: (x3, y3) = (-1,6)
Area = 1/2|x1y2 - x2y1 + x2y3 - x3y2 + x3y1 - x1y3|
plug in all the coordinates
Area = 1/2|(0·4) - (2·4) + (2·6) - (-1·4) + (-1·4) - (0·6)|
= 1/2|0 - 8 + 12 + 4 - 4 - 0|
= 1/2|-8 + 12 + 4 - 4|
= 1/2|4|
= 2