Transformations flashcards
12 practice cards drawn from the Transformations lessons. Tap a card to turn it over. Every answer is checked against the lesson it came from.
Read the Transformations lessons in full →
After a reflection, where does the image sit?
as far past the mirror line as the object sits before it
from “Reflection”
Reflect the point (3, 2) in the y-axis. Where does it land?
(−3, 2)
from “Reflection”
Rotate (3, 0) by 90° counterclockwise about the origin. Where does it land?
(0, 3)
from “Rotation”
Rotate (2, 1) by 180° about the origin. Where does it land?
(−2, −1)
from “Rotation”
Translate the point (2, 3) by the vector [4, −2]. Where does it land?
(6, 1)
from “Translation of Shapes”
Translate the point (−1, 2) by the vector [3, 3]. Where does it land?
(2, 5)
from “Translation of Shapes”
What does a scale factor of do?
shrinks the shape to half size, toward the center
from “Enlargement with a Center”
Where does a negative scale factor put the image?
past the center on the far side, turned half around
from “Enlargement with a Center”
Is a translation then a reflection generally the same as reflecting first?
not generally — the order can change where the image lands
from “Combined Transformations”
Reflecting in the y-axis, then in the x-axis, equals which single move?
a 180° rotation about the origin
from “Combined Transformations”
What is the order of rotational symmetry of an equilateral triangle?
3
from “Rotational Symmetry”
A shape has rotational symmetry of order 1. What does that mean?
no turn short of a full one lands it on itself
from “Rotational Symmetry”