The equation of the second line would be y = -x + 2.
A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.
Two linear graphs intersect at (3, -1).
One of the graphs has equation y = x - 4 and the other one passes through (4, -2).
m = ( -2 + 1) / ( 4 - 3)
m = -1 / 1 = -1
The equation of the second line
y + 2 = m ( x - 4)
y + 2 = -1 ( x - 4)
y = -x + 2
Hence, the equation of the second line would be y = -x + 2.
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