Question

What are the coordinates of point B' after triangle ABC is reflected across the y-axis

Answer 1

(-3, 2)

EXPLANATION :

Note that the coordinates when reflecting an image across the y-axis will be :

`(x,y)\rightarrow(-x,y)`

The sign of the x coordinate will change.

From the problem, the coordinates of B is (3, 2)

The coordinates of it after reflecting across the y-axis will be :

`(3,2)\rightarrow(-3,2)`

The answer is (-3, 2)