The rectangle PQRS the slope of PQ=5/6 then the slope of RS is
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(1) A(2, 3), B(4, 1)
AB=
√
(2-4)2+(3-1)2
=
√
(-2)2+22
=
√
4+4
=2
√
2
(2) P(–5, 7), Q(–1, 3)
PQ=
√
(-5-(-1))2+(7-3)2
=
√
(-4)2+42
=
√
16+16
=4
√
2
(3) R(0, –3), S(0,
5
2
)
RS=
√
(0-0)2+(-3-
5
2
)2
=
√
(
-11
2
)2
=
√
121
4
=
11
2
(4) L(5, –8), M(–7, –3)
LM=
√
(5-(-7))2+(-8-(-3))2
=
√
122+(-5)2
=
√
144+25
=
√
169
=13
(5) T(–3, 6), R(9, –10)
TR=
√
(-3-9)2+(6-(-10))2
=
√
(-12)2+(16)2
=
√
144+256
=
√
400
=20
(6) W(
–7
2
, 4), X(11, 4)
WX=
√
(
-7
2
-11)2+(4-4)2
=
√
(
-29
2
)2
=
√
841
4
=
29
2
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