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Transformations
Definitions, rules, characteristics of rigid motion transformations
Question | Answer |
---|---|
connecting lines are parallel, points move the same distance and the same direction | translation |
a given line is perpendicular to the connecting lines and is the perpendicular bisector of the connecting lines | reflection |
points travel in the path of concentric circles in the same direction, the same number of degrees, around the same point | rotation |
changes that keep the size and shape of the figure the same | transformations |
rule for reflection across the x-axis | (x,y) -> (x, -y) |
rule for reflection across the y-axis | (x, y) -> (-x, y) |
rule for (5, -3) to (11, -4) | (x, y) -> (x+6, y-1) |
the transformed image of the point A | A' |
rule for reflection across the line y = x | (x, y) -> (y, x) |
the original pre-image, point A | A |