If a point having coordinates (x,y) has to be reflected across line y = x, then what will be the coordinates of the reflected point?

If a point having coordinates (x,y) has to be reflected across line y = x, then what will be the coordinates of the reflected point? Correct Answer (-x, y)

When a point has to be reflected across the y-axis, the y value stays the same and the x value becomes opposite of what it is.

Related Questions

How far is point 'R' from Point 'T'? Statement (I): Point 'R' is 5 metres to the north of point 'M'. Point 'U' is 4 metres to the east of point 'R'. Point 'T' is to the west of point 'R' such that points 'U' 'R' and 'T' form a straight line of  metres. Statement (II): Point 'Z' is metres to the south of point 'T'. Point 'U' is  metres to the east of point 'T'. Point 'M' is  metres to the east of point 'Z'. Point 'R' is  metres to the north of point 'M'. Point 'R' lies on the line formed by joining points 'T' and 'U'.