The graph described shows a number line with closed points at -2 and 7, along with a solid line extending between them. This indicates that the solution set includes all values of \( x \) from -2 to 7, inclusive.
Thus, the solution set can be expressed as: \[ -2 \leq x \leq 7 \]
So the answer is:
\( x \geq -2 \) and \( x \leq 7 \)