Transformation Vocab
Which of the following is not preserved in a figure under an isometric/rigid transformation: a) Angles measures b) Area c) Side lengths d) Coordinates e) Orientation
What is Orientation?
Always, sometimes, or never? In a translation, each point moves the same distance from preimage to image?
What is Always
Object is in quadrant 3. A 90 degree counter-clockwise rotation maps the image to which quadrant?
What is quadrant 4?
This kind of transformation preserves all angles and measures (In general. Not specifically rotation, reflection, glide, translation)
What is isometry
Write this in vector notation: T(x,y)---->(x+4,y-5)
What is <4,-5>?
The line reflection is y = 4. Will the object be reflected horizontally or vertically?
What is vertically. (Show example)
Preimage is in quadrant 4. A 360 degree clockwise rotation maps the image into which quadrant?
What is quadrant 4.
These are the three types of Isometric transformations
What are reflection, rotation, translation? **Some people count a glide as a separate transformation, but it is no more than a combination of reflection and translation, so I will stick to "three types"
The point A (3, -5) is reflected across the x-axis. Where is A' ?
What is (3, 5)
If A=A' after rotating an image, where is A located?
Where is the center of Rotation?
These are examples of non-isometric transformations
What is a stretch and dialation?
what is the Pre-Image of A' (-5,4) after being mapped by a translation of T----->(x-5,y+11)
What is (0,-7)?
The point A (4, 10) is reflected across the y-axis. Where is A' ?
Where is (-4,10)?
A -270 degree rotation is equivalent to a counter-clockwise rotation of this many degrees
What is 90
This type of transformation maps every point on the preimage the same distance from a line, to the image
What is Reflection?
A figure has perimeter of 10 feet before a translation. After the translation, its measure is:
What is 10 Feet?
Point B is at (3, 6). It is reflected across the line x = 2. Where is B'?
What is (1, 6)