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Unit 5 Rules
Term | Definition |
---|---|
Translation | (x, y) -> (x+a, y+b) |
Over x-axis | same x values, opposite y values (x, y) -> (x, -y) |
Over y-axis | same y values, opposite x values (x, y) -> (-x, y) |
Over y = x | switch all ordered pairs (x, y) -> (y, x) |
Over y = -x | switch all ordered pairs and change their signs (x, y) -> (-y, -x) |
90 clockwise/270o CC | (x, y) -> (y, -x) |
90 counter clockwise | (x, y) -> (-y, x) |
180 | change the sign of all the coordinates (x, y) -> (-x, -y) |
Dilation | SF = 3 then (x, y) -> (3x, 3y) |