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Lesson 6 MI/Vocab

Graph dilations on a coordinate plane. dilation. center enlargement reduction coordinate plane coordinates point of origin. Lesson 6 MI/Vocab. Copy polygon PQRS on graph paper. Then draw the image of the figure after a dilation with center S by a scale factor of. Draw a Dilation.

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Lesson 6 MI/Vocab

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  1. Graph dilations on a coordinate plane. • dilation • center • enlargement • reduction • coordinate plane • coordinates • point of origin Lesson 6 MI/Vocab

  2. Copy polygon PQRS on graph paper. Then draw the image of the figure after a dilation with center S by a scale factor of Draw a Dilation Lesson 6 Ex1

  3. Step 2 Draw a Dilation Step 1 Use segment SP to locate point P'. Step 3 Repeat Steps 1 and 2 for points Q'and R'. Be sure to draw segment SQ before locating point Q'. Then draw polygon P' Q' R' S', where S = S'. Lesson 6 Ex1

  4. Copy polygon ABCD on graph paper. Then draw the image of the figure after a dilation with center A by a scale factor of 2. Lesson 6 CYP1

  5. Graph a Dilation Graph triangle DEF with vertices of D(-6, 6), E(-2, 6) and F(-4, 2).The graph its image Triangle D’E’F’ after a dilation with a scale factor of 1/2. Lesson 6 Ex2

  6. Graph a Dilation Lesson 6 Ex2

  7. Graph a Dilation Answer: Check Draw lines through the origin and each of the vertices of the original figure. The vertices of the dilation should lie on those same lines. Lesson 6 Ex2

  8. Answer: Interactive Lab:Dilations Lesson 6 Ex2

  9. Find and Classify a Scale Factor In the figure, segment X′Y′ is a dilation of segment XY. Find the scale factor of the dilation, and classify it as an enlargement or as a reduction. Lesson 6 Ex3

  10. Find and Classify a Scale Factor Write a ratio of the x- or y-coordinate of one vertex of the dilation to the x- or y-coordinateof the corresponding vertex of the original figure. Use the y-coordinates ofX(–4, 2) and X'(–2, 1). Answer: Lesson 6 Ex3

  11. In the figure, segment A′B′ is a dilation of segment AB. Find the scale factor of the dilation, and classify it as an enlargement or as a reduction. • A • B • C • D Lesson 6 CYP3

  12. The size of the pupil after dilation is thesize of the pupil before dilation. Words Let a represent the size of the pupil after dilation. Variable Equation Lesson 6 Ex4

  13. Write the equation. Multiply. Answer: His pupil will be 9 millimeters in diameter once dilated. Lesson 6 Ex4

  14. A • B • C • D A. 10 mm B. 11 mm C. 12 mm D. 14 mm Lesson 6 CYP4

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