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WARM UP Monday February 3, 2014

WARM UP Monday February 3, 2014. Rotate the point A(4,6) 180 º CCW. Rotate the triangle BCD 180º B(1,1), C(3,-2), D(-2, -2). EOCT. 1. REVIEW. Reflections. PREIMAGE. IMAGE. A’(X,-Y) B’(-X,Y) C’(Y,X) D’(-Y,-X). ACROSS X-AXIS A(X,Y) → ACROSS Y-AXIS B(X,Y) → ACROSS Y=X C(X,Y) →

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WARM UP Monday February 3, 2014

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  1. WARM UPMonday February 3, 2014 • Rotate the point A(4,6) 180º CCW. • Rotate the triangle BCD180º B(1,1), C(3,-2), D(-2, -2).

  2. EOCT 1.

  3. REVIEW

  4. Reflections PREIMAGE IMAGE A’(X,-Y) B’(-X,Y) C’(Y,X) D’(-Y,-X) ACROSS X-AXIS A(X,Y) → ACROSS Y-AXIS B(X,Y) → ACROSS Y=X C(X,Y) → ACROSS Y=-X D(X,Y) →

  5. 1 LINE A(-1,1) B(-3,4) ACROSS Y = -2 ACROSS X = 1

  6. Translation A’(X ± a, Y ± b) A shift or a slide along a vector (±a, ±b) PREIMAGE A(X,Y) →

  7. YOU TRY! • Translate A(5, 6) by (x-4, y + 6) A’(1, 12) 2. Translate B(-7, -3): 7 units right and 3 units up B’(0,0) 3. Translate C(4, -4): 10 units left and 6 units down C’(-6, -10)

  8. ROTATIONS PREIMAGE IMAGE A’(Y, -X) B’(-Y, X) C’(-X, -Y) Rotate 90º CW A(X, Y) → Rotate 90º CCW B(X, Y) → Rotate 180º C(X, Y) →

  9. GOOD LUCK!!!

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