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Wednesday, 04 March 2026
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The angle between the positive horizontal axis and a given line is 135o. Find the ...

The angle between the positive horizontal axis and a given line is 135o. Find the equation of the line if it passes through the point (2,3)
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  • A X - y = 1
  • B X + y = 1
  • C X + y = 5
  • D X - y = 5
Correct Answer: Option C
Explanation:
m = tan 135o = -tan 45o = -1
\(\frac{y - y_1}{x - x_1}\) = m
\(\frac{y - 3}{x - 2}\) = -1
= y - 3 = -(x - 2)
= -x + 2
x + y = 5

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