數學一問!(中一數)

2007-05-15 2:31 am
題目:直角坐標平面上2點間的距離

資料:A(3,5)
B(3,4-4M)
C(2M+5,10)
已知圖中A(3,5M)和B(3,4-4M)2點相距14單位,求M的值!由此求圖中A,C2點間的距離.

完!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!


PS:-等於減!
更新1:

回答者 :kwl1994 [小學級 5 級]答得正確! THANK VERY MUCH!

回答 (2)

2007-05-15 2:46 am
✔ 最佳答案
5M-(4-4M)=14
5M-4+4M=14
5M+4M=14+4
9M=18
M=2

A(3,5x2)=(3,10)
C(2x2+5,10)=(4+5,10)=(9,10)
A,C2點間的距離=9-3=6
2007-05-15 2:43 am
好像沒有圖案呢!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!


收錄日期: 2021-04-23 21:49:35
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