Translation and Reflection Flashcard

Front

What is the algebraic notation for translating a figure 9 units right and 3 units down?

Back

(x, y) --> (x + 9, y - 3)

Front

What is the transformation from ABC to A'B'C' if the coordinates change by (x+8, y+4)?

Back

Translation 8 units right and 4 units up.

Front

What does a reflection across the x-axis do to the coordinates (x, y)?

Back

(x, y) --> (x, -y)

Front

A reflection could also be described as a __________.

Back

flip

Front

What is the term for the original figure prior to a transformation?

Back

Pre-image

Front

What is the algebraic notation for reflecting a point (x, y) across the y-axis?

Back

(x, y) --> (-x, y)

Front

If a figure is translated 5 units left and 2 units up, what is the algebraic notation?

Back

(x, y) --> (x - 5, y + 2)

Front

What is the effect of a reflection across the line y = x on the point (a, b)?

Back

(a, b) --> (b, a)

Front

What is the term for the image of a figure after a transformation?

Back

Image

Front

If a point (x, y) is reflected across the line y = -x, what is the new coordinate?

Back

(x, y) --> (-y, -x)