âž· Perpendicular ==> negative reciprocal slope
1 = (-1/3)(3) + c
1 = -1 + c
c = 2
It would be y = -1/3x + 2
Q3) slope = difference in y / difference in x
Eq 1 slope: 1/3
Eq 2 slope: -1/3
Eq 3 slope: 1/3
Eq 4 slope: 3/1
It would be The line passing through points (1,4) and (4.3)
A line is perpendicular if it has the negative reciprocal slope
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