Unit Test — Unit test

Question 1

The graph shows an image of a dilation about the origin with a scale factor of .What are the coordinates of the pre-image of , point A?

Revolt · Accepted Answer

(–8, –12)

Question 2

Angie’s rotation maps triangle XYZ to triangle X’Y’Z’. X(3, –6) maps to X’(–3, 6)Y(1, –2) maps to Y’(–1, 2)Z(–1, –5) maps to Z’(1, 5) Which describes the rotation?

Revolt · Accepted Answer

rotation

Question 3

Jason states that . Kelley states that . Which best describes the accuracy of the congruency statements?

Revolt · Accepted Answer

Both statements could be correct. RST could be the result of two translations of ABC. TSR could be the result of a reflection and a translation of ABC.

Question 4

Triangle MNO is rotated 180 using the origin as the center of rotation. Which sequences of transformations will produce the same results? Check all that apply.

Revolt · Accepted Answer

a reflection over the x-axis and then a reflection over the y-axis; a reflection over the y-axis and then a reflection over the x-axis

Question 5

The smaller triangle was dilated to form the larger triangle. What is the value of x?

Revolt · Accepted Answer

7.5

Unit Test — Unit test Answers

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