Final answer:
The question requires finding values for 'y' in a triangle with an area of 4 square units, but the provided information is insufficient to solve directly. We would typically use the coordinates in a geometric formula to find 'y'.
Step-by-step explanation:
To find the value(s) of y such that the triangle with given vertices has an area of 4 square units, we need two steps. First, establish the formula to compute the area of a triangle given its vertices. Second, solve for y using the provided area.
However, the information provided in the question is insufficient for a direct answer. There is no clear relation or formula presented that connects the vertices of the triangle to its area. Hence, a typical approach would be to use the coordinates of the vertices to calculate the area using the determinant method or another geometric approach. Once the area formula is obtained, it can be set to 4 square units, and the resulting equation can be solved for y.
It is important to note that while certain parts of the question mention algebraic expressions and equations, none directly reference the computation of the area of a triangle or how the vertices relate to the value of y.