The domain of the function is {x | 2 ≤ x ≤ 9}
The domain of the function is the set of input values of the graph
The given parameters are
A linear function begins with closed circle at (2,0) and ends with a closed circle at (9,7)
This is represented as
(x, y) = Closed (2, 0)
(x, y) = Closed (9, 7)
Remove the y values to determine the domain
x = Closed 2
x = Closed 9
The closed statement represents the inequality ≤
So, we have
2 ≤ x ≤ 9
Hence, the domain of the function is {x | 2 ≤ x ≤ 9}
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