Reflection Math

Types of transformations include __________, __________, & _________

• reflections, transformations, & cannonization

• translations, reflections, & rotations

• rotations, cannonizations, & reflections

• translations, rotations, & rejections

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Reflections are when you _____ the shape over the line of reflection.

• slide

• rotate

• turn

• flip

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

If the point (-2, -4) is reflected about the y-axis, what will be the new location of the point?

• (2, 4)

• (2, -4)

• (-2, -4)

• (-2, -4)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which coordinate pair will be a direct reflection over the y-axis from (-12, 1.5) on a coordinate plane?

• (1.5, -12)

• (12, -1.5)

• (-1.5, 12)

• (12, 1.5)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Describe the transformation in the image

• Translation

• Reflection

• Rotation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Match the following reflections with their lines of reflection.

• Reflection of a point (x, y) to (x, -y)

• Reflection across x-axis

• Reflection of a point (x, y) to (x, 2 - y)

• Reflection across y = 1

• Reflection of a point (x, y) to (-x, y)

• Reflection across y-axis

• Reflection of a point (x, y) to (2 - x, y)

• Reflection across x = 1

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

In a band camp, 36 students play a percussion instrument, and 96 students play a woodwind instrument. The director of a band camp wants to divide the students into small groups with the same number of students from each of the two sections in each group. What is the greatest number of groups that can be made and how many of each instrument will be in each group?

• 12 groups that include 6 percussion and 24 woodwind

• 4 groups that include 9 percussion and 24 woodwind

• 12 groups that include 3 percussion and 8 woodwind

• 4 groups that include 12 percussion and 30 woodwind

Rick wrote the following steps to find the greatest common factor of 42 and 70.

Step 1: List the factors of 70: 1, 2, 7, 10, 35, and 70.

Step 2: List the factors of 42: 1, 2, 3, 6, 7, 14, 21, and 42.

Step 3: List the common factors 70 and 42: 1 and 2.

Step 4: Find the greatest common factor: 2.

Which statement is true?

• Rick made a mistake. Rick did not include 21 as a factor of 70. The common factors of 42 and 70 are 1, 2, and 21. So the greatest common factor is 21 not 2.

• Rick made a mistake. Rick did not include 5 and 14 as the factors of 70. The common factors of 42 and 70 are 1, 2, 7, and 14. So the greatest common factor is 14 not 2.

• Rick made a mistake. Rick incorrectly listed the multiples instead of factors. The greatest common factor is 88 not 2.

• Rick made a mistake. Rick incorrectly listed the multiples instead of factors. The greatest common factor is 1,344 not 2.

Which of the following statements explains how the butterfly can be moved -5 on the number line?

• Count 5 places to the right from its current location.

• Imagine a reflection of the current number line at zero, and count 5 places to the right of zero.

• Count 5 places to the left from its current location.

• Flip the current number line over at zero, and count 5 places to the left of zero.

Tags

CCSS.7.NS.A.1B