|
Check it out:
Take the
2
... Write it as a fraction:
Flip it over:
... and change the sign:
Let's do a problem:
| Let's find the
equation of the line that passes through the point
|
|
( 1 ,
3 )
and is perpendicular to the line |
 |
. |
What do we need?
|
a
point
 |
a
slope
 |
STEP 1:
Find
the slope
|
It's perpendicular to |
 |
... |
So, we'll get
this guy's slope ... flip it and
change the sign! Easy!
|
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prohibited. |
|
