Question

y=3/5x-12
What is the equation of a line perpendicular to the given line?

Answer 1

Perpendicular line, for a line with slope of m is -1/m.

Answer 2

\[y=\frac{3 }{5}x-12~~~~~~PERPENDICULAR~-->~~~~y=-\frac{5 }{3}x-12\]

Doesn't have to be -12 though, it can have any y-intercept to be perpendicular.

Answer 3

Right. I'd write a general equation representing lines perpendicular to the given line as y=(-5/3)x +b.