click below
click below
Normal Size Small Size show me how
Transformations
Term | Definition |
---|---|
Reflection over x-axis | change the sign of y |
Reflection over y-axis | change the sign of x |
Reflection over y=x | switch the numbers |
Reflection over the origin | Change the sign of both numbers |
<2, -4> | slide the figure right 2 and down 4 |
<-3, 0> | slide the figure left 3 and stay |
(x,y)--->(x+7, y-1) | slide the figure right 7 and down 1 |
Rotate 90 degrees from quadrant 3 | land in quadrant 4 and switch numbers |
A 180 degree rotation is the same as _____ | reflection over the origin |
Equation for a horizontal line is _________. | y = a number |
Equation for a vertical line is __________. | x = a number |
What kind of line is x = 10? | vertical |
What kind of line is y= -6 | horizontal |
Rotate 90 degrees clockwise from quadrant 2 | land in quadrant 1 and switch numbers |
Isometry | a transformation in which the pre-image and image are congruent |
What is a pre-image? | the original figure |
Which figure is the image? | the figure resulting from a transformation |
How can you tell the pre-image from the image on a graph? | The image will be named with primes |