Consider the following graph of a quadratic function. Then which of the following facts are true regarding this quadratic graph?

$\left(\mathrm{i}\right)$ $\mathrm{Y}$-intercept is $-8$

$\left(\mathrm{ii}\right)$ $\mathrm{X}$-intercepts are $-4$ and $2.$

$\left(\mathrm{iii}\right)$ $\mathrm{a}>0$

$\left(\mathrm{iv}\right) \mathrm{D}>0$

$\left(\mathrm{v}\right) \mathrm{D}>32\mathrm{a}$

$\left(\mathrm{vi}\right) \mathrm{b}=2\mathrm{a}$

$\left(\mathrm{vii}\right)$ Vertex of the graph is less than $-8.$

$\left(\mathrm{viii}\right)$ The difference between the $\mathrm{Y}$-axis and axis of symmetry is $1$ unit.

$\left(\mathrm{ix}\right)$ The equation of axis of symmetry is $\mathrm{x}=-1.$

$\left(\mathrm{x}\right)$ The value of $\mathrm{y}$ is same, if it is equidistant from $\mathrm{x}=-1.$