Rotations
Reflections
Translations
Dilations
Sequence of transformations
100
To rotate a point 180 degrees, what happens to x and y?
(x,y)-->(?,?)
(-x,-y)
100
To reflect over the X-axis, what happens to the x and y coordinates?
(x,y)-->(?,?)
(x,-y)
100
If I move a point left and right, am I changing the x or the y coordinate?
The x-coordinate
100
Would the scale factor of 1/3 make a shape enlarge or reduce?
Hint: is 1/3 larger or smaller than 1?
Reduce
100
Rotate the point (4,5) 180 degrees then move 3 to the right
(4,5)->(-4,-5)->(-1,5)
200
If I rotate a point 90 degrees counterclockwise, what clockwise rotation is equal to that?
270 degrees clockwise
200
Reflect the point (5,-7) over the y-axis
(-5,-7)
200
If I have the rule (x-2,y), what is happening?
The point is moving down 2
200
Would a scale factor of 7/4 make an image enlarge or reduce?
Enlarge
200
Reflect the point (8,6) across the x-axis, then slide the point 14 down
(8,6)->(8,-6)->(8,-20)
300
What rotation is happening?
180 degrees
300
Reflect the point (-7,-2) over the x-axis
(-7,2)
300
Translate the point (3,5) left 4
(-1,5)
300
Dilate the point (3,5) by a scale factor of 4
(12,20)
(3*4,5*4)
300
Reflect the point (7,1) across the y axis, then reflect across the x-axis
(7,1)->(-7,1)->(-7,-1)
400
Rotate the point (6,2) 90 degrees counterclockwise
(6,2)--> (?,?)
(-2,6)
400
Over what axis is this being reflected?
The y-axis
400
Translate the point (10,3) down 7
(10,-4)
400
Dilate the following points with the scale factor of 1/2
(1,3)
(3,5)
(7,11)
(.5,1.5)
(1.5,2.5)
(3.5,5.5)
400
Describe the sequence of transformations from A, to B, to C
Reflect across the y-axis
Reflect across the x-axis
500
Rotate the point (-5,-10) 270 degrees counterclockwise
(-5,-10)-->(?,?)
(-10,5)
500
Reflect the point (-7,8) over the y-axis
(7,8)
500
Translate the point the (6,14) right 7 and down 3
(x+7,y-3)
(13,11)
500
What is the scale factor of the following points?
(0,8)->(0,2)
(4,8)->(1,2)
(4,-4)->(1,-1)
(0,-4)->(0,-1)
k=1/4
500
Describe the sequence of transformations in the order blue, orange, green.
reflect across the y axis
left 3, down 5