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### Question 1: Find the slope of the straight lines from the diagram given below
In the first diagram, multiple lines are drawn on a grid, labeled \( A \), \( B \), \( C \), etc. To find the slopes of these lines, use the formula:
\[
\text{slope} = \frac{y_2 - y_1}{x_2 - x_1}
\]
Choose two points on each line and plug their coordinates into this formula.

### Steps to Find the Slope:
1. **Line \( A \):** Identify two points where the line intersects the grid lines exactly. For example, if the coordinates are \( (x_1, y_1) \) and \( (x_2, y_2) \), calculate the slope using the formula above.
2. **Line \( B \):** Repeat the same process.
3. **Line \( C \):** Repeat for line \( C \), and so on.

### Question 2: Find the slope of the straight line from diagrams given below
For this part, individual straight lines are provided:
1. **Diagram (a):** It shows a line inclined at an angle \( \theta \). The slope of a line inclined at angle \( \theta \) with the positive direction of the x-axis is given by:
\[
\text{slope} = \tan(\theta)
\]
   - In diagram (a), the angle appears to be \( 60^\circ \). Therefore,
\[
\text{slope} = \tan(60^\circ) = \sqrt{3}
\]

2. **Diagrams (b) to (e):** Similar to part (a), determine the angle of inclination \( \theta \) of each line with the positive x-axis and find the slope using \( \tan(\theta) \).

### Detailed Example:
- **Diagram (b):** If the angle is \( 30^\circ \), the slope would be \( \tan(30^\circ) = \frac{1}{\sqrt{3}} \).
- **Diagram (c):** If the angle is \( 45^\circ \), the slope would be \( \tan(45^\circ) = 1 \).
- And so on.

### Summary:
1. For Question 1, find the slopes of each line on the grid using the slope formula.
2. For Question 2, use the angle of inclination for each line and calculate the slope as \( \tan(\theta) \).

Would you like a more detailed solution for any specific part of these questions?

### Follow-Up Questions:
1. What are the coordinates of the points on line \( A \) in the grid diagram?
2. Do any lines in the grid diagram appear to have a slope of 0 or undefined?
3. What is the slope of a line making a \( 90^\circ \) angle with the x-axis?
4. How does the slope change as the angle \( \theta \) approaches \( 90^\circ \)?
5. Can you identify any pairs of perpendicular lines in the given diagrams?

### Tip:
The slope of a horizontal line is always 0, while the slope of a vertical line is undefined.

Find the slope of the straight lines from the diagram given below.

Learn how to find the slope of straight lines using the slope formula and angles of inclination. This example covers calculating slopes from grid coordinates and angles, with problems suitable for Grades 8-10.

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