<span>not true
answer is
</span><span>x^5y^5z^5 = xyz^5
should be
(xyz)^5</span>
Answer:
all real numbers
the domain of any parabola is all real numbers because it gets wider.
From the graph,

But this one is inequality so you gotta remember this:
When y > x/2+2
- The shade/region is above the graph itself.
When y < x/2+2
- The shade/region is below the graph.
Therefore, the inequality as shown in the picture is

Four? Isn't it stated in the question? Unless I am assuming wrong.