Bellwork: REVIEW David receives a 6% commission on the first $500 of lumber that he sells. He receives a 10% commission on the amount of his sales above $500. How much commission does he receive on a $620 sale? (DOK 3) a)$25b)$30 c)$37d)$42

Bellwork What is the decimal equivalent of ? A B C D. 0.92

Transformations Mrs. Yow Pre-Algebra

Timed Skill Drill

Homework Review

Transform: To change

Types of Transformations: »Translation »Reflection »Rotation »Dilation

Translations Translation=Slide

A Translation slides each point (or vertex) of a figure the same distance and in the same direction. Nothing changes about the figure except for its position on the coordinate plane. The image is the same size, the same shape and it’s pointing in the same direction as the original. The translation of an object is called its image. If the original object was labeled with letters, such as polygon ABCD, the image may be labeled with the same letters followed by a prime symbol, A'B'C'D′.

Translations=Slide Figure AFigure B Translate the triangle in Figure B: left 2 units, then up 8 units.

Reflections Reflections=Flip

A reflection flips a figure over a line called a line of reflection. A figure and its reflection have the same shape and size, but the figures face in opposite directions-like a mirror image. The reflection of an object is called its image.

Reflections=Flip Instructions: Reflect the triangle over the x-axis. Reflect the triangle over the x-axis.

Rotation Turn

Dilation Size

Closure Explain the difference between –Translation –Rotation –Reflection –Dilation