CBA Review Pt. 2 Transformations and Spiral 1/26/21

Based on the scatterplot, what is the best prediction of the average amount of money spent on groceries for a household of 7 people?

• $240
• $190
• $210
• $300

Tags

CCSS.HSS.ID.B.6

Based on the scatterplot, what is the best prediction of the resting heart rate of a person who exercises an average of 8 hours each week?

• 30 beats per minute
• 50 beats per minute
• 55 beats per minute
• 60 beats per minute

Tags

CCSS.8.F.B.4

CCSS.8.SP.A.1

CCSS.8.SP.A.2

CCSS.8.SP.A.3

Choose the correct scale factor:

• 2
• 3
• 1/3
• 1/2

Tags

CCSS.8.G.A.3

State the coordinate of the image of the given point B (4,9) under a dilation with center at the origin with the given scale factor of 2.

• B' (2 , 4.5)

• B' (-8 ,-18)

• B' (8 ,18)

• B' (9 ,4)

Tags

CCSS.8.G.A.3

Rectangle ABCD is dilated so that A' is located at (3, 6).  What could be the dilation rule?

• (2x, 3y)
• (2/3 x, 2/3 y)
• (3/2 x, 3/2 y)
• (x + 2, y + 3)

Tags

CCSS.HSG.CO.A.2

Reflect Point C over the y-axis:

• (-3, 2)
• (3,2)
• (-2,3)
• (3,0)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which answer shows a reflection across the x-axis?

• d
• c
• b
• a

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Is the picture being reflected in the y-axis or x-axis?

• y-axis
• x-axis

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

State the line of reflection.

• Reflection across y-axis
• Reflection across x-axis
• Reflection across x = 1
• Reflection across y = 1

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the Algebraic Notation for this Reflection?

• (x, y) → (y, x)
• (x, y) → (-x, y)
• (x, y) → (-y, -x)
• (x, y) → (x, -y)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5