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The graph shows a straight line, which suggests a linear equation. From a quick observation of the graph, we can determine the following:

1. **Slope (m)**: To find the slope, we can use two points on the line. The line seems to pass through the points \((-10, 0)\) and \((10, 8)\).

   Using the formula for slope:
   \[
   m = \frac{y_2 - y_1}{x_2 - x_1}
   \]
   where \((x_1, y_1) = (-10, 0)\) and \((x_2, y_2) = (10, 8)\):
   \[
   m = \frac{8 - 0}{10 - (-10)} = \frac{8}{20} = 0.4
   \]

2. **Y-intercept (b)**: The y-intercept is where the line crosses the y-axis. From the graph, the y-intercept seems to be \((0, 4)\).

3. **Equation of the line**: Using the slope-intercept form of a line:
   \[
   y = mx + b
   \]
   Substituting the slope \(m = 0.4\) and the y-intercept \(b = 4\), the equation of the line is:
   \[
   y = 0.4x + 4
   \]

Would you like a more detailed explanation or have any questions about the process? 

Here are 5 related questions to deepen your understanding:
1. How is the slope of a line determined using two points?
2. What does the slope represent in the context of a graph?
3. How do we interpret the y-intercept in real-world applications?
4. Can the line equation change if we select different points?
5. How would you find the x-intercept of this line?

**Tip**: When working with linear equations, the slope tells you how steep the line is, and the y-intercept shows where the line crosses the y-axis.

Determine the equation of the straight line on the graph.

Learn how to find the equation of a straight line using two points on a graph. This problem covers key algebraic concepts, such as the slope formula and slope-intercept form. Suitable for students in Grades 8-10.

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