First slide

Equation of line in Straight lines

Question

The equation of the straight line which is perpendicular $y = x$ and passes through (3, 2) will be given by

Moderate

A

$x - y = 5$
B

$x + y = 5$
C

$x + y = 1$
D

$x - y = 1$

Solution

The equation of the required line is
$y - 2 = - 1 (x - 3)$ or, $x + y - 5 = 0$

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