Translations
TRRRRUUUUUUUEEEEEEE
If you reflect over the y-axis, which value stays the same?
Slide
Translation
The rule of a 180o rotation will look like what?
(x,y) -> (?,?)
(x,y) -> (-x,-y)
A dilation can do 2 things to a pre-image, what are they?
Enlarge and Reduce it's size
What kind of car do I drive?
F-150
True or False:
A translation will have 2 figures that are NOT congruent?
False
If you reflect over the x-axis, which value is changing?
y-value
Rotation
Will a rotation change the orientation of a figure?
Yes, unless its a 360o rotation.
What does the rule look like for a dilation?
(x,y) -> (ax,ay)
Who has the last name same as a gas station?
Keira Valero
(x,y) -> (x + n, y - n)
A reflection will preserve its orientation.
False
Mirror
Reflection
Which of these is a Dilation rule for an enlargement?
(1/3x,1/3y)
(5/2x,5/2y)
(5/2x,5/2y)
What is the last topic we learned?
Write the rule for a translation that is 8 units right and 4 units down?
(x + 8, y - 4)
If point L(6,10) is being reflected over the y-axis, what are the new points?
L'(-6,10)
Enlargement
Dilation
If a pre-image is in Quadrant II and is rotated 90o clockwise will end up in which quadrant?
III
Will a dilation change the orientation of a figure?
No stays facing the same direction
What is the name of the high school softball coach?
Coach Crowley
Write the rule for a Translation that is 3 units left and 3 units up?
True or false:
One of the rules for reflection is (x,y) -> (-x,y)
True
Reduction
Dilation
An image being rotated from Quadrant IV to Quadrant I is what type of rotation?
90o CCW rotation.
The perimeter of a image will change by how much?
The amount of the Scale factor
What is the name of the town I am from?
El Paso