The graph in the image shows a straight line with a positive slope. The slope ($m$) of a line is calculated using the formula:

$m = \frac{\Delta y}{\Delta x} = \frac{\text{Rise}}{\text{Run}}$

To determine the slope:

1. Select two clear points on the line where it crosses the grid intersections. For example:

   • Point 1: $(-10, 0)$
   • Point 2: $(10, 6)$

2. Compute the changes in $y$ and $x$:

   • $\Delta y = y_2 - y_1 = 6 - 0 = 6$
   • $\Delta x = x_2 - x_1 = 10 - (-10) = 10 + 10 = 20$

3. Substitute into the slope formula: $m = \frac{\Delta y}{\Delta x} = \frac{6}{20} = \frac{3}{10}$

Thus, the slope of the line is:

$\boxed{\frac{3}{10}}$

Would you like further details or clarification on this? Here are some related questions to explore further:

1. What does the slope of a line represent geometrically and practically?
2. How does the slope affect the steepness of a line?
3. How can you identify if a line has a positive or negative slope from a graph?
4. What are the slope-intercept and point-slope forms of the equation of a line?
5. How can slope calculations be extended to real-world applications?

Tip: Always double-check that your selected points align exactly with grid intersections to avoid errors when calculating the slope.