Question: Find the length of the segment $AB$.
The length is [ ] . (Type an integer or a decimal.)
Question 3 of 9
Graph: a number line from $-12$ to $12$ with point $A$ at $-3$ in the center-left and point $B$ at $4$ in the center-right; the segment length $AB$ is the distance between $-3$ and $4$, position_hint = center
1. **State the problem:** We need to find the length of the segment $AB$ on a number line where point $A$ is at $-3$ and point $B$ is at $4$.
2. **Formula used:** The length of a segment on a number line between points $x_1$ and $x_2$ is given by the distance formula:
$$\text{Length} = |x_2 - x_1|$$
3. **Apply the formula:** Here, $x_1 = -3$ and $x_2 = 4$.
$$\text{Length} = |4 - (-3)|$$
4. **Simplify inside the absolute value:**
$$|4 + 3| = |7|$$
5. **Evaluate the absolute value:**
$$7$$
6. **Conclusion:** The length of segment $AB$ is $7$ units.