There are multiple parts to this and the rest will be revealed upon answering the previous question correctly.Part A: what is the vertex?

The graph of the function is shown below:
a)
From the graph we notice that the vertex of the function is at the point:
[tex](7,-1)[/tex]b)
From the graph we notice that the axis of the function is the line:
[tex]x=7[/tex]C)
Since this is a polynomial its domain is all the real numbers, that is:
[tex]\text{dom}=(-\infty,\infty)[/tex]d)
From the graph we notice that the range is:
[tex]\text{range}=\lbrack-1,\infty)[/tex]e)
The graph is increasing in the interval:
[tex](-1,\infty)[/tex]f)
The graph is decreasing in the interval:
[tex](-\infty,1)[/tex]