8.1-8.3 Quiz

What is the scale factor from the pre-image ΔDEF to the image ΔABC? Is it an enlargement or reduction?

• 1/2, Reduction

• 1/2, Enlargement

• 2, Enlargement

• 2, Reduction

Tags

CCSS.7.G.A.1

The two triangles are similar. Find missing side.

• 5
• 7
• 9
• 11

Tags

CCSS.HSG.SRT.A.2

Which rule describes the translation shown in the graph?

• (x, y) → (2x, 3y)
• (x, y) → (x - 2, y + 3)
• (x, y) → (x + 2, y + 3)

• (x, y) → (x + 2, y - 3)

Tags

CCSS.HSG.CO.A.2

Reflect Point C over the y-axis:

• (-3, 2)
• (3,2)
• (3, -2)

• (-3,-2)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Find the scale factor of the perimeter if the red parallelogram is the pre-image and the blue parallelogram is the image.

• 11/6

• 6/11

• 121/36

• 36/121

Tags

CCSS.7.G.A.1

A picture of a school’s mascot is 18 in. wide and 24 in. long. It is enlarged proportionally to banner size. If the width is enlarged to 54 in., what is the length of the banner? 

• 72 in
• 60 in
• 62 in
• 80 in

Tags

CCSS.7.G.A.1

The two right triangles in the image are similar.

Find y.

• 144

• 18

• 72

• 12

Tags

CCSS.HSG.CO.C.9

A triangle has vertices with coordinates (2,0), (3, -1) and (-2,-5). If the triangle is dilated by a scale factor of 3 with the origin as the center of dilation, what are the coordinates of the vertices of the image?

• (5,3), (6,2), (1,-2)
• (6,0), (9,-3), (-6,-15)
• (2/3,0), (1,-1/3), (-2/3,-5/3)
• (-1,-3), (0,-4), (-5,-8)

Tags

CCSS.8.G.A.3

Describe the transformation from △ABC to △A'B'C'?

Tags

CCSS.HSG.CO.A.2

• (-2, -10), (6, -8), (0, 10)

• (-14, -18), (6, -20), (-12, 10)

• (-2, -8), (6, -20), (0, -10)

• (2, -10), (6, 8), (0, -10)

Tags

CCSS.8.G.A.3