Geometry Review Transformation

What is the image of S (2, -5) after a rotation of 90° clockwise about the origin?

• S' (-5, -2)

• S' (5, -2)

• S' (-2, 5)

• S' (5, 2)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Dilate Point B by a scale factor of 1/2

• (1.5,-4)

• (-1.5,1)

• (-1,-1.5)

• (-2,-2)

Tags

CCSS.8.G.A.3

A dilation is which of the following: 

• only an enlargement

• only a reduction

• Either an enlargement or a reduction

• Neither an enlargement or a reduction

Tags

CCSS.8.G.A.3

Enlargement or reduction?  Find the scale factor!

• It's a reduction; the scale factor is 2.

• It's an enlargement; the scale factor is 2.

• It's an enlargement; the scale factor is 1/2.

• It's a reduction; the scale factor is 1/2.

Tags

CCSS.7.G.A.1

Rectangle ABCD is dilated so that the coordinates of C' are (2, -1).  What could be the dilation rule?

• (-2x, +1y)

• (1/2 x, 1/2 y)

• (2x, 2y)

• (x - 2, y - 1)

Tags

CCSS.HSG.CO.A.2

If you complete a transformations on a figure (excludeing dialations) then your figures will be congruent. This means ABCD and A'B'C'D' will have all the same side and angle measures.

• True

• False

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

What is the algebraic notation of a figure is Translated 2 units right and 5 units up?

• (x, y) --> (x - 2, y - 5)

• (x, y) --> (x + 2, y + 5)

• (x, y) --> (x + 5, y - 2)

• (x, y) --> (5x, 2y)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Describe the given translation:

(x, y) ----> (x + 2, y - 3)

• slide up 2 units and left 3 units

• slide right 2 units and up 3 units

• slide right 2 units and down 3 units

• slide left 3 units and right 2 units

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Reflecting over the y-axis CHANGES the ____-_____________.

• y-coordinate

• x-coordinate

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which algebraic expression could be the rule for a reduction?

• (x, y)→(2x, 2y)

• (x, y)→(5/2 x, 5/2 y)

• (x, y) →(0.5x, 0.5y)

• (x, y)→(5x, 5y)

Tags

CCSS.HSG.CO.A.2