Scale Factor & Dilation

Front

Identify the ordered pair for the image (-6, 4) using the transformation rule (x,y) -> (0.5x, 0.5y)

Back

(-3, 2)

Front

Describe the transformation from triangle with pre-image coordinates D(-6,0) E(-6,3) F(-9,9) to image coordinates D'(-2,0) E'(-2,1) F'(-3,3).

Back

The pre-image was dilated by a scale factor of 3.

Front

A rectangle graphed on a coordinate plane is transformed to form another rectangle which is similar but not congruent to the first. Which sequence of transformations could the rectangle have undergone? Options: A translation down 3 units and a rotation of 90 degrees, A translation down and a dilation of a scale factor of 3, A rotation of 90 degrees and translation of 3 units to the right, A reflection over the x axis and rotation of 180 degrees

Back

A translation down and a dilation of a scale factor of 3

Front

If the two figures are similar, what is the length of the missing side (x)? Options: 12 cm, 14 cm, 21 cm, 4 cm

Back

12 cm

Front

A triangle drawn on a coordinate grid is dilated by a scale factor of 5 about the origin. Which statement regarding the original triangle and the resulting image is correct?

Back

The two triangles are similar, but not congruent

Front

What must the value of x be in order for the figures below to be similar? Options: 70 feet, 25 feet, 5 feet, 50 feet

Back

50 feet

Front

Find the coordinates of H'J'K'L' after the HJKL is dilated using a scale factor of 1/2. Vertices: H(-10, -4) J(6, -2) K(0,4) L(-4, 6).

Back

H'(-5, -2) J'(3, -1) K'(0, 2) L'(-2, 3)

Front

Which is a TRUE statement about dilations?

Back

A dilation will ALWAYS produce a similar figure.

Front

Triangle LMN was dilated to create L'M'N'. The coordinates of the pre-image and the image are shown in the table below. Find the scale factor that was used in the dilation.

Back

2.5

Front

Coordinates of Q' when triangle PQR is dilated by a scale factor of 4 using the origin as center.

Back

Q' (16,20)