Day 5 STAAR® Blitz Assignment

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This question has THREE parts. Triangle ABC will be dilated on a coordinate grid with a scale factor of 4. The origin is the center of dilation. The coordinates of point A, B, and C are listed below. Fill in the blanks below with the coordinates of triangle A’B’C’. A (-1, -2) → A’ (______, ______) B (1, 3) → B’ (______, ______) C (4, -4) → C’ (______, ______)

What is the rule that represents this dilation?

Quadrilateral WXYZ was dilated on a coordinate grid with the origin as the center of dilation to create quadrilateral W’X’Y’Z’. The vertices of quadrilateral WXYZ and quadrilateral W’X’Y’Z’ are listed below. W (-4, -4), X (-2, 5), Y (0 ,0), Z (1, -5) W’ (-2, -2), X’ (-1, 2.5), Y’ (0, 0), Z’ (0.5, -2.5) What is the rule that represents this dilation?

Quadrilateral ABCD is graphed on a coordinate grid with vertices at A (-2, 0), B (-1, 3), C (3, 4), and D (4, -3). Quadrilateral ABCD is dilated by a scale factor of u with the origin as the center of dilation to create quadrilateral A’B’C’D’. What is the ordered pair that would represent the coordinates of vertex D’?

Dana was dilating a polygon on a coordinate grid using the origin as the center of the dilation. He wanted to make a polygon that is larger than the original polygon. Which of the following could be the algebraic representation of the enlargement? Select THREE correct answers.

• (x, y) → (⅔ x, ⅔ y)
• (x, y) → (3x, 3y)
• (x, y) → (1.25x, 1.25y)
• (x, y) → (5⁄4 x, 5⁄4y)
• (x, y) → (0.75x, 0.75y)

Triangle ABC was dilated with the origin as the center of dilation to create triangle A’B’C’. Write the rule that best represents the dilation that was applied to triangle ABC to create triangle A’B’C’.

Triangle DEF is shown on the coordinate grid. Triangle DEF will be dilated by a scale factor of z with the origin as the center of dilation to create triangle D’E’F’. What is the ordered pair that would best represent the location of point E’?

This question has TWO parts. * This question requires a separate submission to your teacher. Using the origin as the center of dilation and a scale factor of 5⁄2, dilate quadrilateral WXYZ on the coordinate grid to create quadrilateral W’X’Y’Z’. Plot the vertices of quadrilateral W’X’Y’Z’. Label and connect the points to create the quadrilateral.

• By checking the box, I understand this question will be submitted separately to my teacher.