8.3 and 8.10

• Triangle A'B'C' is larger than triangle ABC, because the scale factor is greater than 1.

• Triangle A'B'C' is smaller than triangle ABC, because the scale factor is less than 1.

• Triangle A'B'C' is smaller than triangle ABC, because the scale factor is greater than 1.

• Triangle A'B'C' is larger than triangle ABC, because the scale factor is less than 1.

Tags

CCSS.8.G.A.3

Tags

CCSS.8.G.A.3

A triangle ABC was dilated to create triangle A'B'C'. Point A is (18, 9) and Point A' is (6,3). Which algebraic representation was used to create the dilation?

Tags

CCSS.HSG.CO.A.2

Tags

CCSS.8.G.A.3

• (-2.25, -1.5)

• (-1.5, -2.25)

• (1.5, 2.25)

• (2.25, 1.5)

Tags

CCSS.8.G.A.3

A polygon will be dilated on a coordinate grid to create a smaller polygon. The polygon is dilated using the origin as the center of dilation.

Which rule could represent this dilation?

Tags

CCSS.8.G.A.3

• If a is greater than 1, the image of the polygon is congruent to the polygon.

• If a is between 0 and 1, the image of the polygon is congruent to the polygon.

• If a is greater than 1, the image of the polygon is larger than the polygon.

• If a is between 0 and 1, the image of the polygon is larger than the polygon.

Tags

CCSS.8.G.A.3

A square with a perimeter of 15 units is graphed on a coordinate grid. The square is dilated by a scale factor of 20 with the origin as the center of dilation.

If (x, y) represents the location of any point on the original square, which ordered pair represents the coordinates of the corresponding point on the resulting square?

• (20x, 20y)

• (15x, 15y)

• (x + 20, y + 20)

• (x + 15, y + 15)

Tags

CCSS.8.G.A.3

Tags

CCSS.8.G.A.3

• The side lengths of quadrilateral P'R'S'T' are twice the corresponding side lengths of quadrilateral PRST.

• The angle measures of quadrilateral P'R'S'T' are equal to the corresponding angle measures of quadrilateral PRST.

• The side lengths of quadrilateral P'R'S'T' are9 units longer than the corresponding side lengths of quadrilateral PRST.

• The angle measures of quadrilateral P'R'S'T' are greater than the corresponding angle measures of quadrilateral PRST.

Tags

CCSS.HSG.CO.A.2