The coordinates of B are (22, −6). 2
2
6. P(–2, –5), Q(1, 7), R(3, 15)
2
2
2
d (P, Q)
(3) 2 (12) 2
2. M(–8, 2), N(3, –7) d (M , N )
121 81
112 (9) 2
2
202
d (Q, R)
(3 1) 2 (15 7) 2 2
5 5 , 2
9 144
153 3 17
[3 (8)]2 (7 2) 2
8 3 2 (7) Midpoint: ,
(1 (2)) 2 (7 (5)) 2
2 8
2
2
d (P, R)
2
4 64
68 2 17
(3 (2))2 (15 (5)) 2 (5) 2 (20) 2 25 400 5 17 (continued on next page)
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