Transformation Formula

Which rule describes the action of the coordinates when a figure is reflected over the y-axis?

• (x, y)→(x, -y)

• (x, y)→(-x, y)

• (x, y)→(-x, -y)

• (x, y)→(y, -x)

Which rule describes the action of the coordinates when a figure is reflected over the x-axis?

• (x, y)→(x, -y)

• (x, y)→(-x, y)

• (x, y)→(-x, -y)

• (x, y)→(y, -x)

Which rule describes the action of the coordinates when a figure is rotated 180^o about the origin?

• (x, y)→(y, x)

• (x, y)→(-x, y)

• (x, y)→(-x, -y)

• (x, y)→(-y, -x)

Which rule describes the action of the coordinates when a figure is rotated 90^o about the origin?

• (x, y)→(-y, x)

• (x, y)→(-x, y)

• (x, y)→(-x, -y)

• (x, y)→(y, -x)

A translation formula, ______, reflection formula _______, dialation formula _____

• (x, y) --> (6x , 6y)

  (x, y) --> (x -6, y -3)

  (x, y) --> (x , -y )

• (x, y) --> (x -6, y -3)

  (x, y) --> (6x , 6y)

  (x, y) --> (x , -y )

• (x, y) --> (x -6, y -3)

  (x, y) --> (-x , y)

  (x, y) --> (6x, 3y)

• (x, y) --> (x -6, y -3)

  (x, y) --> (-x , y)

  (x, y) --> (6x, 6y)

Which rule describes the action of the coordinates when a figure is rotated 270^o about the origin?

• (x, y)→(-y, x)

• (x, y)→(-x, y)

• (x, y)→(-x, -y)

• (x, y)→(y, -x)

Which rule describes the action of the coordinates when a figure is reflected over the line y = x?

• (x, y)→(-y, -x)

• (x, y)→(-x, y)

• (x, y)→(-x, -y)

• (x, y)→(y, x)

Which rule describes the action of the coordinates when a figure is reflected over the line y = -x?

• (x, y)→(-y, -x)

• (x, y)→(-x, y)

• (x, y)→(-x, -y)

• (x, y)→(y, x)

Which rule describes the action of the coordinates when a figure is dilated by a scale factor of 2 centered at the origin?

• (x, y)→(x+2,y+2)

• (x, y)→(2x, 2y)

• (x, y)→(1/2x, 1/2y)

• (x, y)→(x-2,y-2)

Which rule describes the action of the coordinates when a figure is dilated by a scale factor of 1/2 centered at the origin?

• (x, y)→(x+2,y+2)

• (x, y)→(2x, 2y)

• (x, y)→(1/2x, 1/2y)

• (x, y)→(x-2,y-2)