Translations
The starting figure before a transformation is called?
What is pre-image?
A type of transformation in which you flip a figure across a line and the line is called?
What is line of reflection?
What are the two directions in rotations?
What is counterclockwise and clockwise?
What 2 things does dilation do to your figure?
What is enlargement or reduction?
What is (answers vary)....Kite, Diamond, Trapezoid, parallelogram, rhombus, or trapezium.
True or false:
During a translation, the pre-image is allowed to slide to a different location and it's size changes during the sliding.
False
When there is a reflection across the x-axis, all the x-values stay the same?
True or False?
True
Is the rule the same for either clockwise or counterclockwise for 180 degrees?
Yes or no?
What is Yes?
The ____________ of a dilation is the ratio of a length in the image to the corresponding length in the pre-image.
What is scale factor?
Which symmetry refers to having the same shape when rotated 180 degrees? (or upside down?)
What is point symmetry?
Triangle ABC has the coordinates A(-8, 10), B(-6, -4), C(-4, 5). If triangle ABC is translated using the rule (x, y) --> (x + 9, y-11), in which quadrant does Triangle A'B'C' lie?
What is Quadrant IV?
Ingrid reflected point M(-5, -3) over the x-axis and plotted point M'. Then, she reflected point M' over the y-axis and plotted point M''. What are the coordinates of point M''?
(5, 3)
Point W has coordinates W(-3, -5). Which of the following art the coordinates of W', the image of W under a rotation of 180 degrees about the origin?
A) (3, -5)
B) (3, 5)
C) (5, 3)
D) (-5, 3)
B
Which rule represents the dilation of a figure by a scale factor of 5 that is centered at the origin?
A (x, y) --> ((1/5)x, (1/5)y)
B (x, y) --> (5x, 5y)
C (x, y) --> (x + 5, y + 5)
D) (x, y) --> (x - 5, y - 5)
B
What math terminology characterizes the the number Pi? (Number System)
What is an irrational number?
Let m represent a positive number. The rule below describes a translation of point P in the coordinate plane.
P(x, y) --> P'(x + m, y - m)
Which of the following describes the effect of the translation?
A) P is translated to the left and up by m units.
B) P is translated to the left and down by m units.
C) P is translated to the right and up by m units.
D) P is translated to the right and down by m units.
What is D?
The image of P(x, y) after a reflection over the y-axis is P'(-3, 11). Which of the following are the values of x and y?
What is x = 3 and y = 11 or point P(3,11)?
What is the rule for Rotating 270 CCW (or 90 CW)?
What is (x,y)->(y,-x)?
What is a fraction?
Who won the first superbowl?
Who is the Green Bay Packers?
What is the rule of a translation Left 4 and Up 9?
[Write in rule notation (x,y)->(x+h,y+k)]
What is (x,y)->(x-4, y+9)?
If given a line x=# or y=#, what is the process to reflect of given line?
What is
-take each vertex and count to the line of reflection,
-then repeat distance on the other side of the line of reflection.
The image of P(4, -3) under some rotation about the origin is P'(-3, -4). Which rotation was performed on point P?
A) 90 degrees clockwise
B) 90 degrees counterclockwise
C) 180 degrees counterclockwise
D) 270 degrees clockwise
What is A?
Describe how you would calculate values if given a scale factor, k=6/5?
What is multiply by 6 and divide by 5?
True or False:
If a figure has rotational symmetry, then the figure automatically has point symmetry?
What is FALSE---it's the other way around.