To reflect a point in the y-axis, we use the same y-coordinate and take the opposite of the x-coordinate.
(4.25,-1.75)
Practice makes perfect
To reflect a point in the y-axis, we use the same y-coordinate and take the opposite of the x-coordinate. Doing it twice will result in coming back to the original point.
(x,y)
→
( - x,y)
→
( -( - x), y )
=
(x,y)We start from a certain point and get to (-4.25, -1.75) by reflecting it across the y-axis. So, we should reflect it once again to get back to the original point.
(-4.25, -1.75)
→
( -(-4.25), -1.75)
Let's simplify the result.
( -(-4.25), -1.75)
=
(4.25,-1.75)
