If we are at -7 on a number line in which direction should we move to reach:
a. 1 `" b."-9" c. " 5`

Answer

To solve the question, we need to determine the direction to move from -7 on a number line to reach the specified numbers: 1, -9, and 5.

### Step-by-Step Solution:

1. **Draw a Number Line**:
- Start by drawing a horizontal line. Mark the center as 0.
- To the right of 0, mark the positive integers (1, 2, 3, 4, 5, 6, 7, 8, 9).
- To the left of 0, mark the negative integers (-1, -2, -3, -4, -5, -6, -7, -8, -9).

2. **Identify the Starting Point**:
- Locate -7 on the number line. This is our starting point.

3. **Part (a): Move to 1**:
- To reach 1 from -7, you need to move to the right (towards positive numbers).
- Count the steps: From -7 to 0 is 7 steps, and from 0 to 1 is 1 step.
- Total steps = 7 + 1 = 8 steps to the right.

4. **Part (b): Move to -9**:
- To reach -9 from -7, you need to move to the left (towards negative numbers).
- Count the steps: From -7 to -8 is 1 step, and from -8 to -9 is another step.
- Total steps = 1 + 1 = 2 steps to the left.

5. **Part (c): Move to 5**:
- To reach 5 from -7, you need to move to the right (towards positive numbers).
- Count the steps: From -7 to 0 is 7 steps, and from 0 to 5 is 5 steps.
- Total steps = 7 + 5 = 12 steps to the right.

### Summary of Directions:
- **To reach 1**: Move **8 steps to the right**.
- **To reach -9**: Move **2 steps to the left**.
- **To reach 5**: Move **12 steps to the right**.