Question

The graph of a quadratic function with vertex (0, 4) is shown in the figure below.

Find the domain and the range.


Write your answers as inequalities, using X or y as appropriate.
Or, you may instead click on "Empty set" or "All reals" as the answer.

Answer 1

See below

Explanation:

The domain of the quadratic equation is going to be
`\mathbb{R}` (all reals), since you can set x to be any real number and get a real value of y.

I can't see the graph, but the range of the quadratic is going to be y ≥ 4 (if the graph opens upwards) or y ≤ 4 (if the graph opens downwards).