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Mathematics
Mathematics
Problem
For which value of
k
k
k
are the points
P
(
k
,
4
)
P(k,4)
P
(
k
,
4
)
,
Q
(
2
,
−
1
)
Q(2,-1)
Q
(
2
,
−
1
)
and
R
(
6
,
3
)
R(6,3)
R
(
6
,
3
)
collinear? a)
k
=
−
5
k=-5
k
=
−
5
b)
k
=
7
k=7
k
=
7
c)
k
=
4
k=4
k
=
4
d)
k
=
1
k=1
k
=
1
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