a figure has a vertex at (5,2). If the figure has a line of symmetry about the y-axis, what are the coordinates of another vertex of the figure?

Question

anonymous · Answer

line of symmetry about the y axis means every point in the figure has a corresponding point that is reflected across the y axis. to reflect across the y axis, you just negate the x coordinate. see: http://bit.ly/judiXv

a_clan · Answer

draw a perpendicular from (5,2) on y-axis. 
Find the length of this perpendicular.
The other vertex is at the same distance away from y-axis on the opposite side.

anonymous · Answer

Alright.. i think i did it right, can i get an answer to check?

anonymous · Answer

what did you get? ;-)

anonymous · Answer

3,2..? I'm not sure how to draw the line because i dont have a graph

anonymous · Answer

you should follow my instructions, and the link I posted.

anonymous · Answer

(which shows you the answer to this question plotted on a graph)

anonymous · Answer

Oh, thanks!

anonymous · Answer

to reflect in the y axis, just negate the x coordinate. to reflect in the x axis, just negate the y coordinate.

anonymous · Answer

So where do i input the information?