To find the slope of the line shown in the image, we will use the slope formula:

$\text{slope (m)} = \frac{\Delta y}{\Delta x} = \frac{\text{change in } y}{\text{change in } x}$

Let's identify two points on the line:

1. Point 1: $(-10, 5)$
2. Point 2: $(0, -5)$

Now, calculate the change in $y$ and $x$:

$\Delta y = -5 - 5 = -10$ $\Delta x = 0 - (-10) = 10$

So the slope is:

$m = \frac{-10}{10} = -1$

The slope of the line is $-1$.

Would you like further clarification or details?

Here are 5 questions that might help deepen your understanding:

1. How do you determine the points on a line from a graph?
2. Can the slope of a vertical line be calculated in the same way?
3. How would you interpret the slope in real-world contexts?
4. What happens if the slope is positive instead of negative?
5. How can you verify the slope using different points on the same line?

Tip: Always check for correct points on the graph by looking where the line crosses grid intersections for accuracy.