1. Let's clarify the problem: You are asking about the origin of the coordinate -2 in the answer to question 6b. 2. Typically, coordinates like -2 come from solving equations or evaluating expressions related to the problem. 3. For example, if the problem involves finding the x-coordinate where a function equals zero, you might solve an equation like $$x + 2 = 0$$ which gives $$x = -2$$. 4. Alternatively, if the problem involves shifting or translating points, -2 could be the result of subtracting 2 from a coordinate. 5. Without the exact problem statement, the best explanation is that -2 is a value derived from solving or simplifying the problem's equations or conditions. 6. If you provide the full problem or the steps leading to 6b, I can explain precisely where -2 comes from.