The graph represents a function, the domain is the set of all real numbers and the range is all real values equal or larger than 4.
What can we say about the domain and range of the graphed function?
First, we can see that this is a parabola that opens upwards, thus, this is a function.
Now, we know that for a quadratic function (for any polynomial actually) the domain is the set of al real numbers.
And to see the range, we need to see the graph. We can see that the parabola has a minimum at the vertex. Thus, the range (which is the set of the outputs) is the set of all the values y equal to or larger than the vertex.
So the range is R: y ≥ -4
If you want to learn more about quadratic equations:
https://brainly.com/question/1214333
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