Translations
A translation is when you do this to a figure.
What is slide it, or move it right, left, up, or down?
A reflection is when you do this to a figure.
What is flip it, or make a mirror image of it?
A rotation is when you do this to a figure.
What is turn it?
This is the name we give to similar shapes of the exact same size.
What is congruent?
Find the new coordinates of (10,12) if you translate the point three units left and 4 units up.
What is (7,16)?
Find the new coordinates of (3,-2) after you reflect the point over the x-axis.
What is (3,2)?
Find the new coordinates of (5,4) after you rotate the point 180º.
What is (-5,-4)?
Find the new coordinates of (3,-2) if you dilate the point with a scale factor of 4.
What is (12,-8)?
Which transformation does not result in a congruent figure?
What is a dilation?
Write the notation of point (x,y) after it moves 3 spots to the left and 7 spots up.
What is (x-3,y+7)?
Write the point (2,3) after it rotates 90º clockwise.
What is (3,-2)?
Write the notation of point (x,y) after it is dilated with a scale factor of 6.
What is (6x,6y)?
These are all congruent in similar figures.
What are angles?
Figure QRST has vertices Q(2,-1), R (6,-1), S(6,-3) and T(2,-3). Which will be the coordinates of vertex R after the rectangle is rotated 90º counterclockwise about the origin?
What is (1,6)?
Line segment CD was dilated by a scale factor of 2. The endpoints of the image are C' (-4,0) and D' (6,2). What are the coordinates of the endpoints of the pre-image?
What is C(-2,0) and D(3,1)?
This is the number we multiply the pre-image by to create a similar image.
What is the scale factor?
Give the coordinates of ∆LMN after a translation of 6 units to the right and 4 units down. L(0,3) M(6,4) N(3,9)
What is L'(6,-1), M'(12,0), N'(9,5)?
These would be the points of rectangle DEFG after a reflection over the x-axis if D(5,5) E(5,8) F(8,8) G(8,5)
What is D'(5,-5), E'(5,-8), F'(8,-8), G'(8,-5)?
Graph ∆JKL after a rotation of 180º about the origin. J(5,6) K(7,9) L (1,2)
What is J(-5,-6), L(-7,-9), L(-1,-2)?
These are the coordinates of ∆DEF after a dilation with a scale factor of ½. D(2,8) E(2,2) F(6,2)
What is D'(1,4), E'(1,1), F'(3,1)?
The pre-image of a triangle has side lengths 3,4,5. The image has side lengths 36, 48, x. This is the scale factor and value of x.
What is a scale factor of 12 and x=60.