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ariiii56
21.08.2019 •
Mathematics
What is the reflection image of u across the y-axis?
the graph is attach
(1, 5)
(1, -5)
(-1, -5)
(-1, 5)
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Ответ:
B.![(1,-5)](/tpl/images/0183/8060/59d27.png)
Step-by-step explanation:
We have been coordinates of some points on coordinate plane. We are asked to find the reflection image of U across the y-axis.
We know that after reflecting a point across y-axis, the y-coordinate of point remains same, while x-coordinate changes to its opposite sign.
We can see that coordinates of point U are
. After the reflection across y-axis the y-coordinate will remain same that is
, while x-coordinate will be opposite of
that is ![-(-1)=1](/tpl/images/0183/8060/35589.png)
Therefore, the coordinates of point U after reflection across y-axis would be
and option B is the correct choice.
Ответ: