Vocabulary
A transformation in which a geometric figure changes location without any change in size or orientation.
What is translation?
Point A is (3,5), Point A' is (-1,5). This is an example of a translation to the _________.
What is the left?
If a figure reflects from the left quadrants to the right quadrants it is a reflection over which axis?
What is the y-axis?
This angle of rotation creates the same image if it's rotated clockwise or counterclockwise at this number of degrees.
What is a rotation of 180 degrees?
Enlargement or Reduction: Dilation by a scale factor of 4/3.
What is enlargement?
Find the coordinates of A' if segment AB with A(2, 4) and B(-1, 1) is translated by 2 units right and 5 units down.
What is A'(4, -1)?
The coordinates of X' when XY with X(-3, 1) and Y(-1, 4) is reflected over the x-axis.
What is X'(-3, -1)?
The rotation that creates the same image as a rotation 270 degrees clockwise.
What is a rotation 90 degrees counterclockwise?
Determine the scale factor: B(2, 5) and B'(1, 2.5).
What is scale factor = 1/2?
The transformation that changes the size of a geometric figure.
What is dilation?
Find the coordinates of X', Y', and Z' when triangle XYZ with X(0,3), Y(3, -2), and Z(4,0) is translated by 5 units left and 1 unit up.
What is X'(-5, 4), Y'(-2, -1), and Z'(-1, 1)?
The coordinates of M', N', and O' when triangle MNO with M(-2, -4), N(-3, 1), and O(0, 2) is reflected over the y-axis.
What is M'(2, -4), N'(3, 1), and O'(0, 2)?
Rotating to the left is an example of this.
What is counterclockwise?
What are the coordinate of G', if G is (-5,6) and is dilated by a scale factor of 4.
What is G' (-20,24)
Find the coordinates of M' and N' when MN with M(-4, -1) and N(-3, -3) is translated 5 units right and 2 units up.
What is M'(1, 1) and N'(2, -1)?
The line of reflection when A(-2, 0), B(1, 3), and C(3, -4) is reflected to A'(-2, -2), B'(1, -5), and C'(3, 2).
What is y=-1?
This angle of rotation brings the shape back to its starting/original location.
What is 360 degrees?
Find the coordinates of Y' when X(12, 4), Y(8,2) and Z(-4,0) are dilated by a scale factor of 1/4.
What is Y'(2, 1/2)?
A transformations that preserves distance; e.g. reflection, rotation, and translation.
What is a rigid transformation?
Describe the translation when D(-5, 4), E(-4, 1), and F(-2, 1) are translated to D'(-5,0), E'(-4, -3), and F'(-2, -3).
What is 4 units down?
The line of reflection when X(-4, 0), Y(-2, -2), and Z(0, -8) is reflected to X'(-2, 0), Y'(-4, -2), and Z'(-6, -8).
What is x=-3?
Find the coordinates of A' and B' when A(-3, -2) and B(-1, 2) are rotated clockwise 180 degrees.
What is A'(3, 2) and B'(1, -2)?
What scale factor will create a geometric figure congruent (equal in measure) to the preimage?
What is 1?