Answer:
y = -1/2x + -3
Step-by-step explanation:
The dots on the line show it has a "rise" of -1 unit for each 2 units to the right. The slope (coefficient of x) is the ratio ...
m = rise/run = -1/2
The value 2 goes in the green-colored box in your picture.
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The line crosses the vertical axis (the dark grid line with an arrow on top) at a point that is 3 units below the horizontal axis (the dark grid line with an arrow at the right). That means the y-intercept is -3.
The value -3 goes in the gray-colored box in your picture.
