Question

The coordinates of the vertices of triangle DEF are given in the table.

D E F
(0,7) (2,9) (4,1)


Triangle DEF is reflected across the x-axis.

What are the vertices of triangle D'E'F'?


Enter your answers in the boxes.

Answer 1

D` ( 0, - 7 )E`( 2. - 9 )F` ( 4, - 1 )

Answer 2

We know that the vertices of triangle DEF are:
D ( 0, 7 ); E ( 2 , 9 ) and F ( 4, 1 ).
When it is reflected across the x-axis x coordinates stay the same and y coordinates changes the sign.
Answer:
The vertices of triangle D`E`F` are:
D` ( 0, - 7 )
E`( 2. - 9 )
F` ( 4, - 1 )