The vertices of ABC are ​, ​, and . If ABC is reflected across the line y to produce the image ​A'B'C', find the coordinates of the vertex ​'.

Answer 1

(x,y)→(-x,y)
so just flip the sign of all the x-coordinates

Next time, try actually typing in your data.

Answer 2

 The vertices of ABC are ​, ​, and . ABC is reflected across the​ y-axis and then reflected across the​ x-axis to produce the image ​A''B''C''. Graph and .

Answer 3

The vertices of ABC are ​A(-5,4)​, B(-2,3) and C(-4,2). If ABC is reflected across the line y=1 to produce the image ​A'B'C', find the coordinates of the vertex ​B'.

Answer 4

-2,-7

Answer 5

The vertices of ABC are ​, ​, and . If ABC is reflected across the​ y-axis to produce the image ABC​, find the coordinates of the vertex .
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Part 1
The coordinates of are
  
enter your response here.