The graph of a quadratic function `f`is shown on the grid. Which of these best represents the domain of f
A- -4\le x\le5
B-y\ge-12.25
C- all real numbers
D- All real numbers less than -4 or greater than 5
D- All real numbers less than -4 or greater than 5
This is because the graph of the quadratic function starts at -4 and continues beyond 5 on the x-axis, indicating that the domain of f includes all real numbers less than -4 or greater than 5.