Question

Two points with coordinates(5,6) and (3,6) lie on a line.To which axis is this line parallel??​

Answer 1

Y axis. Because

$m = \tan( \alpha ) by \: formula \\ \\ m = y2 - y1 \div x2 - x1 \\ = 6 - 6 \div 3 - 5 = 0 \\ \\ and \: \: \tan( \alpha ) = 0 \\ so \: \: \alpha = 90 \: degee \\ \\ and \: 90 \: degree \: is \: parallel \: to \: y \: axis \\ \\ \\ thank \: you$

Answer 2

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