Translations
State the image of point A(1, 4) after a translation 4 units up and 5 units left? (Include the name of the translated point)
A'(-4, 8)
When the question asks you to rotate, but does not specify clockwise or counter-clockwise, which direction do we use by default?
Counter-clockwise
True or False: Reflections preserve congruency and orientation.
False - orientation is not preserved under a reflection.
What do we call the shape we made with our transformation?
The Image.
Whats my name?
Mr. Dunne
Translate L(-3, -2) A(0, -1) D(3, -2) one unit right and three units up.
L'(-2, 1) A'(1, 2) D'(4, 1)
True or False: Rotating a figure 90 degrees CCW is NOT the same as rotating a figure 270 degrees CW.
False - rotating a figure 90 degrees CCW IS the same as rotating a figure 270 degrees CW.
What is the new coordinate point of H(-7, 9) if you reflect it over the x-axis?
H'(-7, -9)
If your triangle is in the second quadrant, how many degrees CCW do you need to rotate to put the image in the fourth quadrant?
180 degrees CCW
Favorite color
Yellow
Write the following translation using its algebraic representation:
A(-3, -4), B(-1, -5)
A'(3, -4), B'(5, -5)
(x,y) -> (x + 6, y)
What is the new image of Z(-4, 0) if you rotate it 270 degrees? CCW
Z'(0, 4)
What are the points of the new image D(-1, -4) E(2, -4) F (4, -5) after a reflection over the x-axis?
D'(-1, 4) E'(2, 4) F'(4, 5)
What is the difference between an enlargement of a shape and a reduction?
Enlargement is a dilation with a scaling factor bigger than 1, Reduction is a dilation with a scaling factor between 0 and 1.
Favorite food
Seafood
What is the coordinate point of the pre-image A given that A' is (8, -7) and underwent this translation: (x,y) ->(x - 2, y + 3)
A(10, -10)
How many degrees was the figure rotated if the pre image was X(-4, 2) Y(-4, 0) Z(0, 3) and the image is X'(4, -2) Y'(4, 0) Z'(0, -3)?
Rotation of 180 degrees
What is the line of reflection if L(1, 4) M(1, 0) N (3, 0) became L'(-1, 4) M'(-1, 0) N'(-3, 0)?
Reflection over the y-axis.
What does orientation mean?
The direction a shape is facing.
How long have I been teaching
5 years
What is the new image of A(2, 4) B(3, -6) C(-6, -6) given (x, y) --> (x + 4, y - 2)?
A'(6, 2) B'(7, -8) C'(-2, -8)
What is the pre-image of M'(-2, 2) N'(-1, -2) O'(-3, -3) after a rotating 180 degrees?
M(2, -2) N(1, 2) O(3, 3)
What is the pre-image of A'(4, 0) B'(5, 1) and C'(4, -4) if it underwent reflection over the y-axis?
A(-4, 0) B(-5, 1) C(-4, -4)
What is the difference between congruency and similarity?
Congruency is same size and shape, similarity is same shape, different size.
Favorite subject
Math