# Thread: [SOLVED] line of semmetry. . .?

1. ## [SOLVED] line of semmetry. . .?

Can someone please explain this point semmetry thing to me one-step-at-a-time. I'm kinda lost. . .

2. Originally Posted by dacry
Can someone please explain this point semmetry thing to me one-step-at-a-time. I'm kinda lost. . .
well, that's a very vague/general question. basically a line of symmetry of a function is any line that can be drawn where the function looks identical on both sides, that is, the line of symmetry acts as a mirror where we can reflect one side of the function to get the other side. for example, the y-axis is a line of symmetry for the function $\displaystyle x^2$, since $\displaystyle x^2$ looks the same on both sides. if we fold the xy-plane at the y-axis, one side of the $\displaystyle x^2$ function will exactly overlap the other. see here and here for more info

3. Point symettry basically means if you take the sheet of paper and rotate it upside down you get the same shape.

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