Rotations
Write the coordinates of the vertices after a rotation 90° counterclockwise around the origin. The coordinates are (-8,5) (-4,5) (-5,10)
(-5,-8) (-5,-4) (-10,-5)
A reflection is when you do this to a figure.
What is flip it or make a mirror image of it?
Write the coordinates of the vertices after a rotation 180° counterclockwise around the origin.
What is move it right, left, up, or down
A dilation is when you do this to a figure.
What is make it bigger or smaller?
Write the coordinates of the vertices after a rotation 180° counterclockwise around the origin. The coordinates are (-3,8) (-3,-2) (-8,-10)
(3,8) (3,2) (8,10)
Find the new coordinates of (3,-2) after you reflect the point over the x-axis.
Find the new coordinates of (3,-2) after you reflect the point over the x-axis.
What is D'(5,5), E'(8,5), F'(8,8), G'(5,8)?
What is (7,16)?
What is make it bigger or smaller?
What is (12,-8)?
Write the coordinates of the vertices after a rotation 270° counterclockwise around the origin. The coordinates are (-2,1) (-2,9) (-8,1)
(1,2) (9,2) (1,8)
Write the notation of point (x,y) after it is reflected over the y-axis.
What is (-x,y)?
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 notation of point (x,y) after it is dilated with r=6.
What is (6x,6y)?
Write the coordinates of the vertices after a rotation 90° counterclockwise around the origin. The coordinates are (4,5) (4,10) (10,9)
(-5,4) (-10,4) (-9,10)
A picture with one point (-3,4) was reflected over the line y=x. What should be the new coordinates of the point?
What is (4,-3)?
Describe the translation for this notation: (x,y) --> (x + 8, y + 4)
What is a translation of 8 units to the right and 4 units up?
Line segment CD was dilated around the origin 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 original line segment?
What is C(2,0) and D(3,1)?
Write the coordinates of the vertices after a rotation 180° counterclockwise around the origin. The coordinates are (8,-7) (8,0) (3,-9)
(-8,7) (-8,0) (-3,9)
Graph rectangle DEFG after a reflection over the line y=x. D(5,5) E(5,8) F(8,8) G(8,5)
What is D'(5,5), E'(8,5), F'(8,8), G'(5,8)?
Graph ∆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)?
Graph ∆DEF after a dilation with a scale factor of 0.5. D(2,8) E(2,2) F(6,2)
What is D'(1,4), E'(1,1), F'(3,1)?