Answer:
D {-3, 3, 7}
Explanation:
From inspection of the given graph, the (x, y) coordinates of points A, B, C and D are:
- A = (-3, 7)
- B = (3, 7)
- C = (7, 3)
- D = (-3, -7)
The domain is the set of all possible input values (x-values).
Therefore, the domain of the given points is the set of x-values of those points: