To solve the inequality \( x + 3 \leq 7 \), we first isolate \( x \):
\[ x + 3 \leq 7 \]
Subtracting 3 from both sides:
\[ x \leq 7 - 3 \]
\[ x \leq 4 \]
This means that the solution includes all numbers less than or equal to 4.
On a number line, this would be represented with a closed circle at 4 (indicating that 4 is included in the solution) and a line extending to the left towards negative infinity.
From the descriptions provided:
- The correct graph is: A number line with arrows at both the ends ranging from negative 10 to 10 in unit increments. A closed circle is marked on the tick line above 4. A line is drawn from 4 toward negative 10 with an arrow at the end.
So the answer is the first option.