Midterm Transformations Review

Review Problems 1-3:

Match the following transformation to its rule for changing the x and y coordinates.

• (x + ?, y + ?)

• reflection over the y-axis

• (-x, y)

• reflection over the x-axis

• (x, -y)

• translation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Review Problems 4-7:

Match the following transformation to its rule for changing the x and y-coordinates.

• (kx, ky)

• dilation

• (y, -x)

• 90 degree counter-clockwise rotation

• (-y, x)

• 180 degree rotation

• (-x, -y)

• 90 degree clockwise rotation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Review Problem 8:

What transformation mapped M (3, 6) to M' (-3, 6)?

• 90 degree counter-clockwise rotation

• 180 degree rotation

• reflection over the x-axis

• reflection over the y-axis

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Review Problem 9:

What transformation mapped C (-7, -8) to C' (7, 8)?

• 90 degree counter-clockwise rotation

• 180 degree rotation

• reflection over the x-axis

• reflection over the y-axis

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Review Problem 10:

What transformation mapped R (4, 5) to R' (12, 15)?

• dilation scale factor 8

• 180 degree rotation

• dilation scale factor 3

• dilation scale factor 1/3

Tags

CCSS.HSG.CO.A.2

Review Problem 11:

What transformation mapped D (2, 3) to D' (-3, 2)?

• 90 degree counter-clockwise rotation

• 180 degree rotation

• 90 degree clockwise rotation

• reflection over the y-axis

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Review Problem 12:

If N (4, 16) is dilated with the origin as the center of dilation, to its image N' (2, 8), what is the scaling factor?

• 2

• 1/2

• 4

• 1/4

Tags

CCSS.8.G.A.3

Review Problem 13:

If A (-2, 3) is reflected over the x-axis then reflected again over the y-axis, what are the coordinates of its image A''?

• (-2, -3)

• (-2, 3)

• (3, -2)

• (2, -3)

Tags

CCSS.8.G.A.3

Review Problem 14:

If F (2, -5) is rotated counterclockwise 90 degrees, what are the coordinates of its image F'?

• (-5, 2)

• (-2, 5)

• (5, 2)

• (-5, -2)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Review Problem 15a:

A figure is dilated under a scale factor of 3:

a. The pre-image and the image are (similar or congruent)?

• similar

• congruent

Tags

CCSS.8.G.A.3