What is an equation of the line that passes through the point (-6, -7) and is perpendicular to the line 6x - 5y = 30?
6x - 5y = 30
-5y=-6x+30
y=(6/5)x-6
the gradient of this line is 6/5
The gradient of tany perpendicular line -5/6
Now you have
\(gradient = gradient\\ \frac{-5}{6}=\frac{y--7}{x--6}\)
And you can finish it. :)