Answer:
y = -3x - 3.
Step-by-step explanation:
The slope of the line = (y2-y1)/(x2-x1) where (x1, y1) and (x2, y2) are 2 points on the line.
Here x1 = -1 , x2 = 0, y1 = 0 and y2 = -3.
So the slope = (-3 - 0) / (0 - (-1))
= -3/1
= -3.
The equation of a line can be written as
y = mx + c where m = the slope and c = the y-intercept.
So substituting m = -3 and the point (-1, 0):
0 = -3(-1) + c
c + 3 = 0
c = -3.
So our equation is y = -3x - 3.
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