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QuizMultiple Choice

Dilations — Unit test

Question 1 • SRC 2022 M/J Grade 8 Pre-Algebra Q1

Triangle XYZ has vertices X(1, –1), Y(3, 4), and Z(5, –1). Nikko rotated the triangle 90° counterclockwise about the origin. What is the correct set of image points for triangle X’Y’Z’?

Answer
A
X’(1, 1), Y’(-4, 3), Z’(1, 5)
B
X’(1, 1), Y’(–3, –4), Z’(–1, –5)
C
X’(–1, 1), Y’(–3, –4), Z’(–5, 1)
D
X’(–1, –1),Y’(4, –3), Z’(–1, –5)
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