The coordinates of A and B are ( 6,0 ) and ( 0,3 ) respectively. C is the reflection of A about the y-axis and D is the reflection of B about the x-axis.
a) Find the coordinates of C and D.
b) Find the slopes of AB , BC , CD , DA .
唔識做功課18
2014-01-07 6:13 am
回答 (2)
2014-01-07 6:34 am
✔ 最佳答案
the coordinates of C=(-6,0)The coordinates of D=(0,-3)
(b)Slope of AB=(3-0)/(0-6)=-0.5
BC=(3-0)/(0+6)=0.5
CD=(0+3)/(-6-0)=-0.5
DA=(0+3)/(6-0)=0.5
2014-01-07 8:34 pm
The x-coordinate of C is the negative of the x-coordinate of A.
Therefore, C = (-6, 0).
Similarly you can write for D and B.
Therefore, C = (-6, 0).
Similarly you can write for D and B.
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