Question

The equation of line passing through (c, d) and parallel to is.

• A. $a ( x + c ) + b ( y + d ) = 0$
• B. $a ( x + c ) - b ( y + d ) = 0$
• C. $a ( x - c ) + b ( y - d ) = 0$
• D. None of these

Answer 1

Answer: (C)

$a ( x - c ) + b ( y - d ) = 0$

Answer 2

The required equation which passes through (c, d) and its gradient is $- \frac { a } { b }$, is $y - d = - \frac { a } { b } ( x - c )$

$\Rightarrow a ( x - c ) + b ( y - d ) = 0$.