CATHY JONES Math Instruction Specialist Center for Mathematics
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CATHY JONES, Math Instruction Specialist Center for Mathematics and Science Education Arkansas NASA Education Resource Center 346 N. West Avenue, Room 202 Fayetteville, Arkansas 72701 (479) 575 -3875 (479) 575 -5680 (FAX) e-mail: cej 001@uark. edu Web: cmase. uark. edu Wiki: cmasemath. pbworks. com Common Core: 8. G. 1. a, 8. G. 3 Point (4, 3) origin X axis y axis
Coordinate Geometry Plot these points on the coordinate plane, connecting them as you go. 1. (16, 22) 2. (18, 19) 3. (20, 20) 4. (18, 12) 5. (22, 18) 6. (23, 15) 7. (28, 16) 8. (26, 12) 9. (29, 10) 10. (22, 8) 11. (24, 6) 12. (17, 6) 13. (17, 2) Name: ______________ Date: ______________
Strand: Geometry Standard 9: Transformation of Shapes (Symmetry, Reflection, Translation) Standard 10: Coordinate Geometry Shapes with Line Symmetry have a line or a fold that make two reflecting parts. Looking at symmetrical sides, each point will have a corresponding reflection point on the other side.
Original Translate the Leaf Points Name: ______________ Date: ______________ On the graph you plotted earlier plot the REFLECTION POINTS and connect the points using a different color pencil. Name the corresponding points. ______ 2. (18, 19) ______ 3. (20, 20) ______ 4. (18, 12) 7. (28, 16) 8. (26, 12) 9. (29, 10) 10. (22, 8) 11. (24, 6) ____________ R e f l e c t I o n 6. (23, 15) ______ o f 5. (22, 18) L I n e 1. (16, 22) ____________ ______ 12. (17, 6) ______ 13. (17, 2) ______
Translation is the process of sliding a picture to a new location, without rotation, reflection or changing its shape or size.
On your graph paper, translate (slide) the leaf 3 units left and 2 units down. What are the new coordinates of the leaf?
Original Translate the Leaf Points Name: ______________ Date: ______________ With the graph you plotted earlier TRANSLATE the leaf left 3 units and down 2 units. Name the corresponding points. Original Points Reflection Points 1. (16, 22) ____________ 2. (18, 19) ______ 2. (14, 19) ______ 3. (20, 20) ______ 3. (12, 20) ______ 4. (18, 12) ______ 4. (14, 12) ______ 5. (22, 18) ______ 5. (10, 18) ______ 6. (23, 15) ______ 6. (9, 15) ______ 7. (28, 16) ______ 7. (4, 16) ______ 8. (26, 12) ______ 8. (6, 12) ______ 9. (29, 10) ______ 9. (3, 10) ______ 10. (22, 8) ______ 10. (10, 8) ______ 11. (24, 6) ______ 11. (8, 6) ______ 12. (17, 6) ______ 12. (15, 6) ______ 13. (17, 2) ______ 13. (15, 2) ______