M8 Unit 2 Review (Transformations)

Front

Reflections over the y-axis change the ___________.

Back

x-coordinate

Front

The point (8, 12) was dilated to become point (2, 3). What was the scale factor?

Back

¼

Front

Which algebraic rule will produce a translation that is 5 units to the right?

Back

(x, y) → (x + 5, y)

Front

If point a were translated +7 in the x-direction and +3 in the y-direction, where would the point end up?

Back

Point B

Front

When the scale factor of a dilation is less than one, the dilation is a reduction. True or False?

Back

True

Front

What is a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape to create a new shape.

Front

What is a translation in geometry?

Back

A translation is a type of transformation that slides a figure in a straight line from one position to another without changing its size or shape.

Front

What does a dilation do to a shape?

Back

A dilation changes the size of a shape but keeps its proportions the same.

Front

What is the scale factor in a dilation?

Back

The scale factor is the ratio of the size of the new shape to the size of the original shape.

Front

What happens to the coordinates of a point when it is reflected over the x-axis?

Back

The y-coordinate changes sign, while the x-coordinate remains the same.