# What is the equation of the line perpendicular to y=-7/15  that passes through  (-25,5) ?

Jan 29, 2016

$x + 25 = 0$

#### Explanation:

the given line is,
$y = - \frac{7}{15}$

$\mathmr{and} , y + \frac{7}{15} = 0$

so, the equation of the perpendicular line should be,

$- x + c = 0$

now, passing the line throught (-25,5) we get,
$- \left(- 25\right) + c = 0$

$\mathmr{and} , 25 + c = 0$

$\mathmr{and} , c = - 25$

so, the equation is,
$- x - 25 = 0$

$\mathmr{and} , x + 25 = 0$