The equation of the line in the graph given is: y = -3x - 1.
How to Write the Equation of a Line?
Find the slope of the line, which is: m = rise/run.
Rise of the line = 3 units
Run = 1
Slope (m) = -3/1 = -3
Y-intercept (b) = -1 (at this point, x equals zero)
Substitute m = -3 and b = -1 into y = mx + b
y = -3x + (-1)
y = -3x - 1
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