Definition
What transformation slides?
Translation
What are the coordinates of (-3,4) after translating
(x-2, y+4)
(-5,8)
What is the coordinate rule if an image is reflected across the y-axis?
(-x, y)
Make x opposite
True or False.
When you dilate a figure, the shape and size stay the same.
False
What is the coordinate change rule for 90 degrees clockwise?
(y, -x)
What is the original figure called?
Preimage
Translate B (3,1)
x-2, y + 1
B' (1, 2)
When reflecting a point over the x-axis, which coordinate remains the same?
x-coordinate
T(5,2) is dilated by a scale factor of 2. What are T' coordinates?
T'(10,4)
X(3, -1) Rotate 180 degrees clockwise.
X'(-3, 1)
What is the term for same shape and size?
Congruent
J(-3,4) is moved 2 units right and 5 units down, what are the coordinates of point J'
J' (-1, -1)
Reflect points (-6, -3) over the x-axis than the y-axis.
(-6, 3)
J(8,-4) is dilated by a scale factor of 1/4. What are the new coordinates?
J'(2,-1)
M(1,4) Rotate 90 degrees clockwise
M'(4, -1)
What is the formula we use to find Scale Factor?
new image
preimage
Translate point (-4, -4) x + 3, y + 4
(-1, 0)
Reflect J(1,1), K(5,5), L(0,0) over the y-axis. What are the prime coordinates?
J'(-1,1), K(-5,5), L(0,0)
Is a scale factor of 8/9 going to enlarge or reduce a figure by dilation?
8/9 < 1
Reduce
What are the two rotations with the coordinate change of (-y, x)?
90 degrees counterclockwise and 270 degrees clockwise
What is type of turn that goes around to the right?
Rotation Clockwise
The coordinates of triangle ABC are A(0,5), B(2,1), C(-4,-4). What are the A'B'C' coordinates after translating 8 units right and 5 units down?
A'(8,0), B'(10,-4), C'(4,-9)
Reflect D(2,8) over the x-axis. What quadrant will D' end up in?
Quadrant 4
V(-3, 4) scale factor of 3, then reflect V' over the x-axis. What are the new coordinates?
V"(-9, -12)
What are the new coordinates and quadrant?
A(-5, 2) after a 90 counterclockwise rotation?
A'(-2, -5)
Quadrant 3