coordinate geomrtry problem

👨🏻‍🏫 學術台數學

[匿名]

2013-03-17 9:05 pm

New Trend Mathematics Chapter 9 Exercise 9c Q13

Three vertices of parallelogram ABCD are A(6,3), B(3,8) and C (-6,10). If point D lies in quadrant II. find the coordinates of D.

更新1:

but it is not a mc question

回答 (1)

用戶10012

2013-03-17 10:26 pm

✔ 最佳答案

Assume this is an MC question that only answer is important.
When B shifts to C, A will shift to D.
B shifts to C by 9 units in the x - direction and 2 units in the y - direction,
so D is (6 - 9, 3 + 2) = (-3, 5)

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