Reflections

Question 1

What is the rule for the reflection?

Revolt · Accepted Answer

ry-axis(x, y) → (–x, y)

Question 2

What is the rule for the reflection?

Revolt · Accepted Answer

rx-axis(x, y) → (x, –y)

Question 3

Sumy is working in geometry class and is given figure ABCD in the coordinate plane to reflect. The coordinates of point D are (a, b) and she reflects the figure over the line y = x. What are the coordinates of the image D'?

Revolt · Accepted Answer

(b, a)

Question 4

Question 4

Revolt · Accepted Answer

109973

Question 5

Consider reflections of ΔJKL. What line of reflection maps point K to point K' at (–5, 2)? What line of reflection maps point L to point L' at (–2, 3)?

Revolt · Accepted Answer

Selection 1: y-axis; Selection 2: y = -x

Question 6

Which reflection will produce an image of ΔRST with a vertex at (2, –3)?

Revolt · Accepted Answer

a reflection of ΔRST across the line y = –x

Question 7

Which are true if figure DEFG is reflected across the x-axis? Check all that apply.

Revolt · Accepted Answer

D(0, 4) → D'(0, –4); E(–2, 0) → E'(–2, 0); The perpendicular distance from G' to the x-axis will equal 2 units.

Question 8

Point P is located at (–4, –7). P is reflected across the x-axis to create P'. In which quadrant is P' located?

Revolt · Accepted Answer

Quadrant II

Question 9

Figure ABCDE was reflected across the line y = x to create figure A'B'C'D'E'. What are the coordinates of the pre-image of E'? E(, )

Revolt · Accepted Answer

Part 1: -2; Part 2: 6

Question 10

The image of a point is given by the rule ry = –x(x, y) → (–4, 9). What are the coordinates of its pre-image?

Revolt · Accepted Answer

(–9, 4)

Reflections Answers

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