Identify a translation or a reflection
Compare the shapes: same size and just slid (translation), same size and a mirror image (reflection), same size and turned (rotation), or a different size (dilation).
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Triangle ABC has vertices A(1, −2), B(−4, 5) and C(−6, −1). Its image has vertices A'(1, 2), B'(−4, −5) and C'(−6, 1). Which transformation is it? Write translation, reflection, rotation or dilation.
Answer: reflection
Triangle ABC has vertices A(6, −5), B(−1, 4) and C(−6, −5). Its image has vertices A'(2, −3), B'(−5, 6) and C'(−10, −3). Which transformation is it? Write translation, reflection, rotation or dilation.
Answer: translation
Triangle ABC has vertices A(−2, −3), B(−5, −2) and C(−5, −1). Its image has vertices A'(2, 2), B'(−1, 3) and C'(−1, 4). Which transformation is it? Write translation, reflection, rotation or dilation.
Answer: translation
Tip: Compare the shapes: same size and just slid (translation), same size and a mirror image (reflection), same size and turned (rotation), or a different size (dilation).
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