Unit Test — Unit test Answers

Triangle ABC is rotated counterclockwise using the origin as the center of rotation. The preimage and image are shown in the graph below.Which rotation could have taken place?

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

Figure RST on the graph is reflected over the y-axis creating figure R’S’T’. Figure R’S’T’ is translated down 2 units and left 1 unit creating R’’S’’T’’. Tyler knows that RST R’S’T’ because reflections produce congruent figures. He also knows that R’S’T’ R’’S’’T’’ because translations produce congruent figures. What can Tyler determine based on these two statements? Check all that apply.

Which statement is true of triangles FGH and JKL?

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

Figure A below is translated 4 units left and 1 unit down and then reflected over the y-axis. Which best explains whether figure B is the image of figure A under the specified transformations?

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

In triangle VWX, VW = 4.5 inches, WX = 5.9 inches, , and . If , which statement is true?

Point G is rotated 90°. The coordinate of the pre-image point G was (7, –5), and its image G’ is at the coordinate (5, 7). What is the direction of the rotation?

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.

Which sequence of transformations would result in an image that is similar and non-congruent to the pre-image? Assume that any scale factor for the dilations is not equal to 1. Check all that apply.

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