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Reference Sheet
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32
Mark for Review
Lines
a
and
b
are perpendicular. If the points
(
8
,
p
)
and
(
9
,
p
+
4
)
lie on line
a
, and lines
a
and
b
intersect at
(
9
,
p
+
4
)
, which of the following points must lie on line
b
?
A
(
p
+
8
,
p
−
4
)
Check
B
(
9
,
p
−
8
)
Check
C
(
p
,
p
+
4
)
Check
D
(
5
,
p
+
5
)
Check