Final answer:
The rectangular form of the given equations is x = y and x = 1 - y.
Step-by-step explanation:
The given equations are x - y = 0 and x + y = 1.
To find the rectangular form of these equations, we need to isolate x and y in each equation. For the first equation, we can add y to both sides to get x = y. For the second equation, we can subtract y from both sides to get x = 1 - y.
So, the rectangular form of the equations is x = y and x = 1 - y.
Therefore, the correct answer is option 3) x = 0, y = 0 and x = -1, y = 1.