# how to create x-axis symmetry

• September 30th 2008, 12:14 PM
oceanmd
how to create x-axis symmetry
To create y-axis symmetry, we need to use the absolute value of the input.
What do you need to do to give the graph x-axis symmetry?

Thank you very much
• September 30th 2008, 12:42 PM
icemanfan
You simply take the absolute value of y. For example, $y = 2x + 3$ becomes $|y| = 2x + 3$ and $x = y^2$ already has symmetry across the x-axis, since $|y|^2 = y^2$.
• September 30th 2008, 03:49 PM
oceanmd
Thank you
Thank you very much.