Answer:
Co-ordinates of X' are (-4,-5).
Step-by-step explanation:
We are given a triangle XYZ with co-ordinates of X = (4,-5).
Also, it is given that, XYZ is reflected across y-axis.
We know, <em>'When a figure is reflected across y-axis, the co-ordinates (x,y) changes to (-x,y)'.</em>
So, as XYZ is reflected across y-axis.
We get,
X = (4,-5) changes to X' = (-4,-5)
Hence, the co-ordinates of X' are (-4,-5).