Vocabulary
A transformation in which a graph or geometric figure slides to another location.
What is translation?
The coordinates of a vertex that is translated 3 units left of the origin.
What is (-3,0)?
The algebraic rule for a reflection across the y-axis.
What is (x,y) becomes (-x, y)?
This angle of rotation creates the same image if it's rotated clockwise or counterclockwise.
What is a rotation of 180 degrees?
The scale factor of a dilation is 3/2. Is this a reduction or an enlargement?
What is an enlargement?
Geometric operations that alter the form of a figure. Examples: translations, reflections, and rotations.
What are transformations?
The coordinates of A' for segment AB with A(2, 4) and B(-1, 1) is translated by (x+2, y-5).
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)?
A vertical line after a 90 degree rotation.
What is a horizontal line?
The algebraic rule for dilating a shape by 3.
What is (x, y) becomes (3x, 3y)?
The two axis' where transformations occur.
What are the x and y axis?
The coordinates of Y' when triangle XYZ with X(0,3), Y(3, -2), and Z(4,0) is translated by (x-5,y+1).
What is Y'(-2, -1)?
The algebraic rule for a reflection across the x-axis.
What is (x,y) becomes (x,-y)?
The equation of the line x = 2 after a 90 degree clockwise rotation about the origin?
What is y = -2?
Given that point B is located at (13, 8) find the image if dilated by a scale factor of 1/2.
What is (6.5, 4)?
A transformation in which a plane figure turns around a fixed center point.
What is a rotation?
Find the coordinates of N' when MN with M(-4, -1) and N(3, -3) is translated 5 units down and 2 units left.
What is N'(1, -8)?
The coordinates of the B' after a reflection over the x-axis when A(-2, 0), B(1, 3), and C(3, -4).
What is B' (1, -3)?
This angle of rotation maps (x, y)-->(-y, x).
What is a rotation 90 degrees counterclockwise or 270 degrees clockwise?
The dilation rule if the pre-image of a triangle is (4, -6), (-2, 4) and (8, 12) and the image is (2, -3), (-1, 2) and (4, 6).
What is (x, y) becomes (1/2x, 1/2y)?
A transformation that does not preserve size.
What is a dilation?
Write the algebraic rule when D(-5, 4), E(-4, 1) are translated to D'(-4, 0), E'(-3, -3).
What is (x, y) --> (x+1, y-4)?
The coordinates of the image of point F after a reflection OVER BOTH X and Y AXIS D(-4, 0), E(-2, -2), and F(-4, 8).
What is F" (4, -8)?
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)?
The scale factor if the pre-image point A is (-24, 6) and the image of point A is (-8, 2). What is the scale factor?
What is 1/3?