Translations and Reflections

Front

What is a translation in geometry?

Back

A translation is a transformation that moves every point of a shape a certain distance in a specified direction.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

How do you translate a point in the coordinate plane?

Back

To translate a point, you add the translation values to the x and y coordinates of the point.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the result of translating point A(3,5) 7 units up and 2 units left?

Back

A'(1,12)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What does it mean to reflect a point over the y-axis?

Back

Reflecting a point over the y-axis means to change the sign of the x-coordinate while keeping the y-coordinate the same.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the reflection of point B(-2,6) over the y-axis?

Back

B'(2,6)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a reflection in geometry?

Back

A reflection is a transformation that flips a shape over a line, creating a mirror image.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the difference between translation and reflection?

Back

Translation moves a shape without changing its orientation, while reflection flips it over a line.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

How do you determine the coordinates after a translation?

Back

Add the translation values to the original coordinates.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the result of translating point X(1,1) 3 units left and 9 units down?

Back

X'(-2,-8)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the transformation from ABCD to A'B'C'D' if it is moved 6 down and 3 left?

Back

Translation.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5