L
(
S
) [Span of
S
⊆
R
2
]
L
(
S
), for
S
= {
x
}
Pick a point
x
L
(
S
), for
S
= {
x
,
y
}
Pick a point
x
Pick another point (
y
) -
L
(
S
), for
S
= {
x
1
,
x
2
, ... ,
x
n
}
Pick a point
Pick more points
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