Mathematics
Junior High
Resolved
國二上數學
75
2PE
2. 如右圖,在坐標平面上,有一人由A(2,2)出發,
向南走3個單位,再向西走7個單位到達B點,則
B點坐標為(-1, -5),AB
=
2-3 = -1
11
(北)
(-, +).
O
A (2,2)
→x (東)
(-)-)| (+,-)
same nã
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