Answer:
y = -4x + 5
Explanation:
y = mx + b
m = slope
b = y-intercept
I see point (0, 5), so the y-intercept is 5. b = 5
Another easy to read point is (1, 1).
We need to find the slope.
slope = rise/run
Now go from point (0, 5) down vertically 4 units. The rise is -4.
Finally, go 1 unit right to point (1, 1). the run is 1.
m = slope = rise/run = -4/1 = -4
y = -4x + 5