Lumbungimgmz4

So, reflection in X axis means reflection in the line y = 0 Let P (x, y) be any point in the plane Draw a perpendicular PL from the point P to the X axis and produce it to the point P' such that PL = LP' Then P' is the image of P after reflection in X axis Here, coordinates of L are (x, 0) Reflection Over the XAxis For our first example let's stick to the very simple parent graph of y = x^2 {See video for graph} On the screen you can see that the graph of this equation is a parabolaY = f (x) y = f (−x) Remember, the only step we have to do before plotting the f (x) reflection is simply divide the xcoordinates of easytodetermine points on our graph above by (1) When we say "easytodetermine points" what this refers to is just points for which you know the x Reflecting A Shape In Y X Using Cartesian Coordinates Key Stage 3 Reflection of y x formula