To find the slope of a line given its graph, you typically use the formula for slope, which is:
\[ \text{slope} (m) = \frac{\text{change in } y}{\text{change in } x} = \frac{\Delta y}{\Delta x} \]
This means you can pick two points on the line and determine their coordinates (let's say \((x_1, y_1)\) and \((x_2, y_2)\)). The slope is then calculated as:
\[ m = \frac{y_2 - y_1}{x_2 - x_1} \]
However, since I do not have access to the graph itself, I cannot calculate the slope directly.
If you provide the coordinates of two points on the line or additional information from the graph, I can help calculate the slope or confirm which of the options (4, -1/2, 2, 1/2) would be the correct slope based on that information.