Answer:
y = -3x + 1
Explanation:
y = mx + b
mx: slope
b: y-intercept
This line has a negative slope (mx) because of its direction. The plotted points are three units down and one unit right apart, which makes it -3/1x or -3x.
The y-intercept (b) is 1 because at the coordinate (0, 1) the line passes through the y-axis.
Therefore, the line should be y = -3x + 1.