What do you do to a figure when you translate it?
Slide it
What does it mean to reflect an image?
Flip it (mirror it)
What are the coordinates of the image after the following dilation centered at the origin?
Preimage: (7, 2) Scale factor: 10
(70, 20)
If you reflect over a line that is y=3 is your reflection line going to be horizontal or vertical?
Horizontal
What directions can you slide a figure for a translation?
Up, Down, Left, Right
What is point (-5,8) reflected across the y-axis?
(5,8)
What is the rule/formula for an image rotated 180 degrees?
(x,y) -> (-x,-y)
What is the scale factor of the following:
Preimage: (2, 2) Image: (5, 5)
What is 2.5? (5/2)
What type of figures do Dilations create?
Similar Figures
Describe this rotation using a formula/rule.
(x,y) -> (-y,x)
90 counterclockwise
What is the scale factor of the following dilation?
Preimage: (6, 3) Image: (2, 1)
1/3
What type of figures do Rotations, Reflections, and Translations make?
Congruent Figures
If a triangle starts at A (3,2) B(5,6) C (3,4) What would the new points be if translated 4 points right and 2 units up.
A' (7,4)
B' (9,8)
C' (7,6)
What is the formula/rule for a point reflected across the y-axis?
(x,y) ->(-x,y)
If you have point G at (-3,2) and you rotate it 270 counterclockwise, what would the point G' be?
(2,3)
What are the coordinates of the image after the following dilation centered at the origin?
Preimage: (12, -4) Scale factor: 1/2
(6, -2)
If triangle ABC and A'B'C' are congruent, what line segment corresponds to AB?
A'B'
Describe the Translation Using the Formula
(x-6,y+2)
What is the formula/rule for points reflected across the x-axis?
(x,y) -> (x,-y)
Give the new points for triangle ABC after rotated 90 degrees clockwise. A(3,4) B(-2,1) C(5,-6)
A (4,-3) B(1,2) C(-6,-5)
A dilation of 1/4 of point G(-4,8). What are the new coordinates?
(-1,2)
Ms. Woodall attends what College?
University of North Georgia