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23. What would be the location of the vertex (3, 4) if it were reflected across the y-axis? A. (3,-4) B. (-3, 4) C. (4, -3) D. (-4, 3)
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5 votes
23. What would be the location of the vertex (3, 4) if it were reflected across

the y-axis?
A. (3,-4)
B. (-3, 4)
C. (4, -3)
D. (-4, 3)

User Dmitry Stropalov
by
7.1k points

2 Answers

3 votes
Answer is B. ( -3, 4)
Reason

The rule for a reflection over the y -axis is (x,y)→(−x,y) . So from x to -x (-3) and y stays the same (4)
User Genius
by
6.0k points
4 votes
The answer is B. (-3,4) as it is being flipped across the y-axis, so only the y-coordinate is being changed.

I hope that this helps! :)
User Mrduguo
by
6.7k points
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