Answer:
slope = -3
Explanation:
The line is declining, which means that it will have a negative slope.
Using the slope formula:
m = (y2 - y1)/(x2 - x1)
Take two points from the graph:
Let (x1, y1) = (0, 2)
(x2, y2) = (2, -4)
m = (y2 - y1)/(x2 - x1)
m = (-4 - 2)/(2 - 0)
m = -6/2
m = -3
Therefore, the slope of the line is -3.
For your reference, attached is an edited screenshot of your given graph where it shows where I got the two points for solving the slope.