Identifying Rules
(x, y) → (x + 3, y)
What transformation is this?
Translation (3 units to the right)
What is another word for rotate?
Turn
This word is another way of saying reflecting
Flip
What is another word for translation?
Slide or Shift
What happens to a figure when the scale factor is < 1?
Reduction/gets smaller
(x, y) → (x,-y)
What transformation is this?
Reflection over the x-axis
Does a rotation change the size or shape of a figure?
No, only the position
Which coordinate stays the same when a figure is reflected over the y-axis?
The y-coordinate
Adding to the x-coordinate moves a figure in this direction.
Dilate (−4, 6) by a scale factor of ½.
(-2, 3)
A figure is flipped over a vertical line.
What transformation is this?
Reflection over the y-axis
Rotate (−1, 4) 180° about the origin.
(1, −4)
Reflect (−4, 2) over the y-axis.
(4, 2)
Write the rule for translating a figure 3 units to the left and 2 units up.
(x - 3, y + 2)
What happens to a figure when the scale factor is > 1?
It enlarges/gets bigger
Describe this transformation. (x,y) → (-x,-y)
Rotation of 180 degrees around the origin.
Rotating 90 degrees counterclockwise is the same as rotating ________ degrees clockwise.
270 degrees
A point was reflected across the x-axis. Write the algebraic representation.
(x, y) → (x, -y)
Translate (7, −1) using the traslation rule: (x−5, y+6)
(2, 5)
Dilate (6, −3) by a scale factor of 5.
(30, -15)
A figure is moved to a new position, but it is not flipped, not turned, and not resized.
What transformation is this?
Translation
A point becomes (−6, 2) after a 180° rotation. What was the original point?
(6, -2)
A reflection across the x-axis of the word WOW would produce this word.
MOM
What happens in the following transformation rule: (x - 4, y + 0)
Shift 4 units left
A point (x, y) was dilated by a scale factor of 3. Write the algebraic representation.
(x, y) → (3x, 3y)