Answer:
y = -1/2 x -3
Explanation:
The slope is the steepness of the line. Look at the points plotted on the graph. To go from one point to the other you can go down 1 unit and right 2 units or if you are going the opposite direction of up 1 unit and left 2 units.
The slope is negative because it is gong down from left to right.
The y-intercept is -3. This is where is crosses the y axis.
slope -1/2 (m)
y -intercept -3( b)
y = mx + b
y = -1/2 x - 3