Answer:
Given the graph, we can determine the slope, and use slope formula* to prove it.
Points: (-4, 1) and (-2, -1)
From the graph, the slope of the line is -1, mean the line goes down 1 unit and left 1 unit.
To prove this you can use slope formula*:
[tex]m = \frac{-1 - 1}{-2 + 4} = \frac{-2}{2} = -1[/tex]
*Slope formula: [tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
