SOLUTION: use graphs the find equation of the horizontal or vertical line
1. line passes (1,3) and parallel to the line L: y = 4
2 line passes (1,3) and perpendicular to the line
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Linear-equations
-> SOLUTION: use graphs the find equation of the horizontal or vertical line
1. line passes (1,3) and parallel to the line L: y = 4
2 line passes (1,3) and perpendicular to the line
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