Vocabulary
A figure that slides into a new position.
What is translation?
The algebraic representation for a figure that is translated 3 units left.
What is (x, y) --> (x - 3, y)?
Reflections do not preserve this.
What is orientation?
This angle of rotation creates the same image if it's rotated clockwise or counterclockwise.
What is a rotation of 180 degrees?
Enlargement or Reduction: Dilation by a scale factor of 4/3.
What is enlargement?
A change in a figure; resizing, turning, flipping or sliding.
What is transformations?
Translations do preserve this.
What is orientation and congruence?
The coordinates of X' when X(-3, 1) 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?
A figure that has been flipped over the x or y axis.
What is a reflection?
Find the coordinates of X' when X(0,3) is translated 5 units to the left and 1 unit up.
What is X'(-5, 4)?
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)?
The algebraic representation for a rotation clockwise of 90 degrees.
What is (x, y)-->(y, -x)
Find the coordinates of A' and B' after dilating A (3, 4) and B (-12, 15) the figure by a scale factor of 0.75.
What is A"(2.25, 3) and B"(-9, 11.25)?
A figure that has been turned around either clockwise of counter-clockwise.
What is rotation?
Find the coordinates of M' when M(-4, -1) translated 5 units right and 2 units up.
What is M'(1, 1)?
This angle of rotation maps (x, y)-->(-y, x).
What is rotation 270 degrees clockwise or 90 degrees counterclockwise?
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)?
The direction a figure faces.
What is orientation?
The algebraic representation for when D(-5, 4) and is translated to D'(-5,0).
What is (x, y)-->(x, y-4)?
The line of reflection when X(-4, 0), Y(-2, -2), and Z(0, -8) is reflected to X'(-4, 0), Y'(-2, 2), and Z'(0, 8).
What is the x-axis?
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)?
Find the coordinates of B' when A(5, 0), B(5, -4.5), and C(2,4) using the following algebraic representation: (x, y)-->(6x, 6y).
What is B"(30, -27)?