Types
A slide up, down, left, or right.
What is a translation?
Point A (2, 3) maps to A′ (5, 3).
What is a translation?
Translate a point 4 units to the right.
What is (x + 4, y)?
Describe (x + 2, y − 5).
What is 2 units right and 5 units down?
This line is represented by x = 0.
What is the y-axis?
A turn 90 degrees around around the origin.
What is a rotation?
Point A (4, −1) maps to A′ (4, 1).
What is a reflection over the x-axis?
Translate a point 6 units down.
What is (x, y − 6)?
Describe (x, −y).
What is a reflection over the x-axis?
This line is represented by y = 0.
What is the x-axis?
A flip across the x-axis.
What is a reflection?
Point A (−2, 5) maps to A′ (2, −5).
What is a 180° rotation about the origin?
Rotate a point 180° about the origin.
What is (−x, −y)?
Describe (−x, y).
What is a reflection over the y-axis?
This line goes from the bottom left to the top right.
What is the line y = x?
A flip across y=x.
What is a reflection?
Point A (1, 4) maps to A′ (−4, 1).
What is a 90° counterclockwise rotation about the origin?
What is a 90° counterclockwise rotation about the origin?
Reflect a point over the y-axis.
What is (−x, y)?
Describe (−x, −y).
What is a 180° rotation about the origin?
This line goes from the bottom right to the top left.
What is y=-x?
A turn of 180 degrees around the origin.
What is a rotation?
Point A (−3, 2) maps to A′ (3, 2).
What is a reflection over the y-axis?
Reflect a point over the line y = x.
What is (y, x)?
Describe (-y, -x).
What is a reflection over the line y = -x?
This line passes through (3, 0), (3, 1), (3, 2), (3,4)...
What is x=3?