Unit Test — Unit test

Question 1

Rectangle EFGH is translated according to the rule T–5, 9(x, y). If the coordinates of the pre-image of point H are (–2, –3), what are the coordinates of H'?

Revolt · Accepted Answer

(–7, 6)

Question 2

A rectangle on a coordinate plane is translated 5 units up and 3 units to the left. Which rule describes the translation?

Revolt · Accepted Answer

(x, y) → (x – 3, y + 5)

Question 3

The image of trapezoid PQRS after a reflection across is trapezoid P'Q'R'S'.

Revolt · Accepted Answer

RR' || SS'

Question 4

Which rules could describe the rotation? Select two options.

Revolt · Accepted Answer

R0, 180°; (x, y) → (–x, –y)

Question 5

If a quadrilateral has exactly 2 lines of symmetry, and both are angle bisectors, then which statement would be true?

Revolt · Accepted Answer

The figure could be a rhombus because the 2 lines of symmetry bisect the angles.

Question 6

A line segment has endpoints at (–1, 4) and (4, 1). Which reflection will produce an image with endpoints at (–4, 1) and (–1, –4)?

Revolt · Accepted Answer

a reflection of the line segment across the line y = –x

Question 7

A point has the coordinates (0, k).Which reflection of the point will produce an image at the same coordinates, (0, k)?

Revolt · Accepted Answer

a reflection of the point across the y-axis

Question 8

On a coordinate plane, a square and a point are shown. The square has points R prime (negative 8, 1), S prime (negative 4, 1), T prime (negative 4, negative 3), and U prime (negative 8, negative 3). Point S is at (3, negative 5).

Revolt · Accepted Answer

(–1, –6)

Question 9

A rhombus has 4 equal sides.

Revolt · Accepted Answer

2

Question 10

Right triangle LMN has vertices L(7, –3), M(7, –8), andN(10, –8). The triangle is translated on the coordinate plane so the coordinates of L’ are (–1, 8).

Revolt · Accepted Answer

(x, y) → (x – 8, y + 11)

Unit Test — Unit test Answers

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