Mathematics
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OpenStudy (anonymous):
Line of Symmetry help please! What is the equation for the line of symmetry in this figure?
x = 0
x = -1
y = -1
y = 0
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OpenStudy (anonymous):
OpenStudy (anonymous):
is it x = 0, because there is only y axis symmetry?
OpenStudy (atlas):
Can you draw a line in the figure which divides the figure into EXACTLY two similar parts??
OpenStudy (atlas):
@mamasherman : NO
OpenStudy (anonymous):
oh
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OpenStudy (atlas):
Please draw a lines as I suggested
OpenStudy (anonymous):
folding in in half vertically
OpenStudy (atlas):
right! now if you observe the line of fold will pass parallel to y-axis
OpenStudy (anonymous):
|dw:1393565966437:dw|
OpenStudy (atlas):
and the value of x always remains equal to -1
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OpenStudy (anonymous):
oh, i see
OpenStudy (atlas):
so........i hope you can guess the line of symmetry
OpenStudy (anonymous):
line parallel is to the left of y
OpenStudy (atlas):
yes
OpenStudy (anonymous):
why always -1 for x?
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OpenStudy (atlas):
see the line of fold and find out the values of x
OpenStudy (anonymous):
sorry, i dont get it
OpenStudy (atlas):
see the line of fold and find out the values of x at random points
OpenStudy (anonymous):
maybe i am making it too difficult
OpenStudy (atlas):
oh no its ok
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OpenStudy (anonymous):
2
OpenStudy (anonymous):
i think i am confused as to the line of fold because it is not there, and the y is..
OpenStudy (atlas):
|dw:1393566186188:dw|
OpenStudy (anonymous):
ok, i thought the line of fold, would be further to the left. that is why i didnt know where u were getting -1
OpenStudy (atlas):
the line that you drew is parallel to y-axis (see figure)
and the value of x on the line always remains -1
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OpenStudy (anonymous):
so the answer is x= -1
OpenStudy (atlas):
yes
OpenStudy (anonymous):
but now, i know why it is!! :)
OpenStudy (anonymous):
which will help me with future problems
OpenStudy (anonymous):
thanks so much!