Question

How do you write the equation of the line with (-5, -9) and is perpendicular to x=-9?

Answer 1

The equation of the line is `y = -9`

Explanation:

The slope of line perpendicular to `x= -9` is `m=0`

The equation of line passing through `(-5 , -9)` is `y - (-9) = m (x- (-5)`
or `y+9 = 0*(x+5) or y+9 =0 or y = -9`

The equation of the line is `y = -9` [Ans]