help~f.1-f.2MATHZ~
2008-07-30 8:11 pm
The distance between the points (-2,k) and (-2,-3) is 5.Find the possible value of k.
回答 (2)
2008-07-30 8:18 pm
✔ 最佳答案
k-(-3)=5k=8
2008-07-31 6:45 am
Because the x-coordinate of the two points are the same, the possible value of k will be
k = (-3) - 5
= -8
k = (-3) + 5
= 2
Therefore, k will either be -8 or 2.
其實要知道點搵k的值, 可形象化條題目, 例如將個座標畫出來睇睇會易白D. 畫在格仔紙上亦可以數出來的, 這可以是另一個答法.
k = (-3) - 5
= -8
k = (-3) + 5
= 2
Therefore, k will either be -8 or 2.
其實要知道點搵k的值, 可形象化條題目, 例如將個座標畫出來睇睇會易白D. 畫在格仔紙上亦可以數出來的, 這可以是另一個答法.
參考: 我係老師
收錄日期: 2021-04-13 15:53:15
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