y=(x+3)^2+1 domain and range

Question

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Answer 1

The graph of y = (x+3)² + 1 is a parabola opening upward with vertex (lowest point) (-3,1).

 

Domain = set of all possible values of x

 

            = set of all real numbers = (-∞, ∞)

 

Range = set of all possible values of y

 

          = set of all real numbers ≥ 1 = [1,∞)