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Algebra
Find the Perpendicular Line through (-5,9) ; perpendicular to x=9
through
(
−
5
,
9
)
(
-
5
,
9
)
; perpendicular to
x
=
9
x
=
9
Step 1
Since
x
=
9
x
=
9
is a
vertical
line
, the
slope
is undefined.
Undefined
Step 2
The
perpendicular
line
is
horizontal
and the
slope
is
0
0
.
y
=
9
y
=
9
Step 3
⎡
⎢
⎣
x
2
1
2
√
π
∫
x
d
x
⎤
⎥
⎦
[
x
2
1
2
π
∫
x
d
x
]
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