A geometric transformation that moves every point of a figure, shape or space by the same distance in a given direction.
What is translation?
A translation is also known as a __________. (one word)
What is a slide?
A reflection is also known as a ______. (one word)
What is a flip?
Enlargement or Reduction: Dilation by a scale factor of 1/2?
What is reduction?
What is false?
The coordinates of X' when X(-3, 1) is reflected over the x-axis.
What is X'(-3, -1)?
Rotating 270 degrees clockwise creates the same image as rotating ______ counterclockwise.
What is 90 degrees counterclockwise?
Enlargement or Reduction:
Dilation with a scale factor of 4.5?
Enlargement
The transformation that turns a figure around a fixed point.
What is a rotation?
True or False: a translation changes the position of a figure?
What is true?
What axis was the figure reflected over? (See Powerpoint for graph).
What is the y-axis?
The rule for a rotation counterclockwise 90 degrees.
What is (x, y)-->(-y, x)
Find the coordinates of A (1, 2) and B (3, 4) when they are dilated with a scale factor of 3.
What is A' (3, 6) and B' (9, 12).
A geometric transformation where a shape or object is flipped across a line.
What is a reflection?
Describe the translation shown. (See PowerPoint for graph).
What is 4 units down?
The rule for reflecting (x, y) over the y-axis.
What is (x, y) --> (-x, y).
Rotate the point (-3, -4) 270 degrees counterclockwise.
What is (-4, 3)?
Find the coordinates of A (4, 6) and B (2, 8) when they are dilated with a scale factor of 1/2.
What is A' (2, 3) and B' (1, 4)?
A transformation that enlarges or reduces a figure.
What is a dilation?
Describe the translation shown. (See PowerPoint for graph)
What is 8 units up and 4 units right?
Reflect the points over the x-axis:
A (1, 4)
B (-3, 0)
C (2, 7)
What is:
A' (1, -4)
B' (-3, 0)
C' (2, -7)?
Find the coordinates of A' and B' when A(-3, -2) and B(-1, 2) are rotated counterclockwise 180 degrees.
What is A'(3, 2) and B'(1, -2)?
Determine the scale factor: B(2, 5) and B'(1, 2.5).
What is scale factor = 1/2?