Transformations and Similarity Review ENL

A dilation is which of the following:

• only an enlargement

• only a reduction

• either an enlargement or a reduction

Did the image enlarge, reduce or none of the above?

• Enlarge

• Reduce

• None of the above

State the coordinate of point B (4,9) under a dilation with the scale factor of 2.

• B' (2 , 4.5)

• B' (-8 ,-18)

• B' (8 ,18)

• B' (9 ,4)

A figure has a point at (3, 4). When dilated by a factor of 2, the new image point is located where?

• (5, 6)

• (5, 8)

• (6, 8)

• (6, 6)

Dilate Point C by a scale factor of 3:

• (12,0)

• (12,12)

• (1, 2/3)

• (9, 6)

What is the image of D (-6, 4) after a dilation of k = 3 ?

• D' (18, 12)

• D' (-18, 12)

• D' (-18, -12)

A(1,2) is a point on a triangle. If the triangle is dilated by a scale factor of k =4, what is the coordinate of A'?

• A' (0.25, 0.5)

• A' (-4, -8)

• A' (4, 8)

If the triangle ABC is dilated using a scale factor of k=2, what will be the coordinates of A' after the transformation?

• A'(1.5, -1.5)

• A' (-6, 6)

How long is side x?

• 3
• 1.5
• 8
• 2/3

The pair of figures is similar. Find the missing side.

• x = 20
• x = 12
• x = 5
• x = 4