 |
These lines are
perpendicular.
(They form a
 angle.)
So, what's going on
with the slopes?
Notice that they are
inverses
but the signs are different |
A typical math
book would say:
But this is
easier:
|
You flip it over
and change the sign --
That's how you get the slopes of
perpendicular lines.
|
* If you want to be a
super geek, you can rap it!
