The vertex of a quadratic equation is given at (−2, 1), and the quadratic is concave up. How can the range and domain be described? Question options:

Domain: [1, ∞)
Range: (−∞, ∞)

Domain: (−∞, ∞)
Range: [1, ∞)

Domain: [−2, ∞)
Range: (−∞, ∞)

Domain: (−∞, ∞)
Range: [−2, ∞)

First answer
Explanation:
Just as a reminder, domain is the x values that would give a defined answer for y, and range is the possible values y could get.
The domain of every polynomial is (-infinity, infinity), because there isn’t any value that could make it undefined.
Since this is an upward opening parabola, it’s vertex is its minimum point, which is 1. That means the range would be [1, infinity).
This means the answer is:
Domain: [1, infinity)
Range: ( -infinity, infinity)
I hope this helped.

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