Triangle xyz is reflected across the y-axis, and x = (4,-5). what are the coordinates of x’ ? a) (-5, 4) b) (-4, -5) c) (4, 5) d) (-4, 5)

The correct answer is B.

You can come to this decision by picturing the initial point in your mind. Point X has a positive x-value and a negative y-value. This puts it in quadrant 2 on the coordinate plane. Now, if you flip that point over the y-axis, that makes its new location in quadrant three. In quadrant three, both the x and y coordinates are negative. So, the value wouldn’t change but both would become negatives.

I hope this helps. :)