OpenUp 8th Math 1,6 Practice Problems and Vocab

Here is Trapezoid A in the coordinate plane:

Draw Polygon B, the image of A, using the y-axis as the line of reflection.

Then, draw Polygon C, the image of B, using the x-axis as the line of reflection.

Then, draw Polygon D, the image of C, using the x-axis as the line of reflection.

The point (-4, 1) is rotated 180 degrees counterclockwise using center (3, 0). What are the coordinates of the image?

• (-5, -2)

• (-4, -1)

• (-2, -1)

• (4, -1)

Describe a sequence of transformations for which Triangle B is the image of Triangle A.

Here is quadrilateral ABCD. Draw the image of ABCD after the following transformation:

The translation takes B to D.

Here is quadrilateral ABCD. Draw the image of ABCD after the following transformation:

The reflection over segment BC.

Here is quadrilateral ABCD. Draw the image of ABCD after the following transformation:

The rotation about point A by angle DAB, counterclockwise.