Dilations — Unit test Answers

Which triangle on the coordinate grid is a translation of triangle F?triangle

Rectangle LMNP is rotated, using the origin as the center of rotation, to form rectangle L’M’N’P’. What is the angle of rotation?

Which type of transformation must have occurred in order to map triangle RST to its image, triangle R’S’T’?

Triangle ABC is dilated by a scale factor of 2 with a center of dilation at the origin. What are the coordinates of the image of point ?

Which statement about the reflection below is true?

What is true about the rotation of the shaded triangle to the position of the unshaded triangle? Check all that apply.

Triangle TUV is graphed on the coordinate plane below. The figure is rotated 270°counterclockwise using the origin as the center of rotation. Where is point V’?

Which statements about the dilation are true? Check all that apply.

Kadesha says that the triangles represent a translation.Which explains whether Kadesha is correct?

A translation is shown on the grid below in which triangle A is the pre-image and triangle B is the image.Which rule describes the x-coordinates in the translation?

Max is trying to prove to his friend that two reflections, one across the x-axis and another across the y-axis, will not result in a reflection across the line y = x for a pre-image in quadrant II. His friend Josiah is trying to prove that a reflection across the x-axis followed by a reflection across the y-axis will result in a reflection across the line y = x for a pre-image in quadrant II. Which student is correct, and which statements below will help him prove his conjecture? Select the three correct answers.

Which red triangle shows a 90° counterclockwise rotation of the blue triangle? Check all that apply.

The image of a triangle after it has been dilated with a center of dilation at the origin has vertices at (12, –6), (–24, –12), and . If the pre-image of , point B, has coordinates of (–18, –9) and the pre-image of , point C, has coordinates of (–13.5, 18), which statements are true? Select 3 options.

A translation is shown on the grid below.Which are true statements about the translation? Select 3 options.

Which choices correctly describe reflections in the diagram? Check all that apply.