the table shows some ordered pairs that belong to quadratic function h

The table represents the quadratic function h(x)
The range of the quadratic function is (d) all real numbers greater than or equal to -8
The range of the quadratic function is the list of the function ouput values.
From the table, we have:
The smallest output value is -8
Assume this is the vertex of the quadratic function, the range of the quadratic function would be (d) all real numbers greater than or equal to -8
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