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Mathematics
Mathematics
Problem
Given the points
P
(
−
2
,
3
)
P(-2,3)
P
(
−
2
,
3
)
,
Q
(
1
,
−
1
)
Q(1,-1)
Q
(
1
,
−
1
)
and
R
(
4
,
−
5
)
R(4,-5)
R
(
4
,
−
5
)
, answer the following: a. (i) Calculate the slope of
P
Q
PQ
P
Q
. b. (ii) Calculate the slope of
Q
R
QR
QR
. c. (iii) Are the three points collinear? Justify your answer based on the values obtained.
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