Helpppppppppp plz..............
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The coordinates of vertex B' is .
<h3>How to calculate the coordinate of point by reflection</h3>
A point if reflected across the line by means of the following formula:
(1)
Where:
- Original point
- x-Coordinate of point P
- Resulting point
If we know that and
, then the coordinates of the vertex is:
The coordinates of vertex B' is .
To learn more on reflections, we kindly invite to check this verified question: brainly.com/question/1878272