what the domain and range?

Answer:
The domain is {x : -7 ≤ x ≤ 6} ⇒ [-7, 6]
The range is {y: -5 ≤ y ≤ 4} ⇒ [-5, 4]
Step-by-step explanation:
The domain is all values of x belong to the graph
The range is the values of y that corresponding to the domain
Let us study the graph to find the domain and the range
∵ The graph starts from the point (-7, 4) ⇒ the highest point
∵ The graph ends at the point (6, -5) ⇒ the lowest point
→ That means the most left point has x-coordinate -7 and the most
right point has x-coordinate 6
∴ The domain is {x : -7 ≤ x ≤ 6} ⇒ [-7, 6]
∵ The highest point on the graph has y-coordinate 4
∵ The lowest point on the graph has a y-coordinate -5
→ The range is the values of y from these values
∴ The range is {y: -5 ≤ y ≤ 4} ⇒ [-5, 4]