Reflections

Question 1

Consider the reflection of parallelogram PQRS across the line of reflection, .

Revolt · Accepted Answer

7; If RR' = 14, then RZ = .: 7; If SX = 5, then = 5.: XS'

Question 2

If SX = 5, then = 5.

Revolt · Accepted Answer

XS'

Question 3

Complete the mapping of the vertices of ΔDEF. | What is the rule that describes a reflection across the line y = x? | (x, y) →

Revolt · Accepted Answer

(1, 5)

Question 4

(x, y) →

Revolt · Accepted Answer

(y, x)

Question 5

Which statements are true about reflections? Check all that apply.An image created by a reflection will always be congruent to its pre-image.An image and its pre-image are always the same distance from the line of reflection.If a point on the pre-image lies on the line of reflection, the image of that point is the same as the pre-image.The line of reflection is perpendicular to the line segments connecting corresponding vertices.The line segments connecting corresponding vertices are all congruent to each other.The line segments connecting corresponding vertices are all parallel to each other.

Revolt · Accepted Answer

An image created by a reflection will always be congruent to its pre-image.; An image and its pre-image are always the same distance from the line of reflection.; If a point on the pre-image lies on the line of reflection, the image of that point is the same as the pre-image.; The line of reflection is perpendicular to the line segments connecting corresponding vertices.; The line segments connecting corresponding vertices are all parallel to each other.

Question 6

Complete the mapping of the vertices of ΔDEF.

Revolt · Accepted Answer

(-4, 2); D(2, –4) → D': (-4, 2); E(1, –1) → E': (-1, 1); F(5, 1) → F': (1, 5); (x, y) →: (y, x)

Question 7

What is the pre-image of vertex A' if the rule that created the image is ry-axis(x, y) → (–x, y)?

Revolt · Accepted Answer

A(–4, 2)

Question 8

Complete the mapping of the vertices of ΔDEF. | What is the rule that describes a reflection across the line y = x? | (x, y) →

Revolt · Accepted Answer

(-1, 1)

Question 9

What are the coordinates of the image of vertex P after a reflection of rx-axis(x, y)?

Revolt · Accepted Answer

⇒ -7: -7; 4

Question 10

What is the rule for the reflection?

Revolt · Accepted Answer

ry-axis(x, y) → (–x, y)

Reflections Answers

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