For the quadratic equation ${\mathrm{x}}^2-11\mathrm{x}+24=0,$ what will be the position of the vertex of the quadratic graph with reference to the $\mathrm{X}$-axis?

Which of the following is false?

$\left(\mathrm{i}\right)$ If only the positive values of $\mathrm{x}$ are taken, the quadratic graph does not intersect the $\mathrm{Y}$-axis.

$\left(\mathrm{ii}\right)$ If only negative values are taken, the quadratic graph does not intersect the $\mathrm{Y}$-axis.

$\left(\mathrm{iii}\right)$ The interception of $\mathrm{Y}$-axis can be known when we substitute $\mathrm{x}=0,$ in the quadratic function.

$\left(\mathrm{iv}\right)$ There can be minimum zero and maximum two $\mathrm{x}$-intercepts.