Question

When polygon reflects across the y-axis , how do the coordinates of the points change

Answer 1

Answer: The sign of the x-coordinate changes.

Step-by-step explanation: Imagine the x-axis and y-axis, the x-axis account for how far over the point is and the y-axis is how high or low a point is. When reflecting across the y-axis, the height of the points are the same, but the positon of the points move left or right. Example: (3,5) when reflected across the y-axis becomes (3,-5).

Using basic terms here!

Hope this helps on your test/quiz!

Answer 2

If you were to reflect a polygon across the y axis, the x coordinate would become the opposite and the y coordinate would stay the same. So, for example, you have the point (4, 3) and you are reflecting it across the y axis. It would now become (-4, 3). Hope this helps!