7.GM.2.2, 7.GM.4.3, 6.GM.1.1, 6.GM.1.2

7.GM.2.2, 7.GM.4.3, 6.GM.1.1, 6.GM.1.2

By Kyle Mather

Multiple Choice

What is the perimeter of the composite figure?

• 57 cm

• 65 cm

• 30 cm

• 36 cm

Multiple Choice

What is the area of the composite figure?

• 54 inches squared

• 56 inches squared

• 46 inches squared

• 28 inches squared

Translations

• A translation is a transformation that slides a figure along a straight line.

• To translate a figure in a coordinate plane, add or subtract the given number of units to the preimage coordinates.

• Positive values translate a figure up or to the right.

• Negative values translate a figure down or to the left.

Reflections

• A reflection is a transformation that is a flip.

• A point or figure is reflected in a line called the line of reflection.

• A reflection is a mirror image of the preimage.

• Each point in the image and preimage is the same distance from the line of reflection.

• The image has the same shape and size as the preimage.

Multiple Choice

Which graph shows a figure and its image after a translation?

Multiple Choice

Which graph shows the new position of parallelogram HIJK after a translation of 3 units to the left and 3 units down from its original position?

Multiple Choice

The vertices of triangle JKL, are J(2, 1), K(4, 4), and L(6, 2).

If triangle JKL is translated 2 units to the left and 4 units down, what are the new coordinates of Point L?

• (10, 0)

• (4, -2)

• 
  

  (8, -2)

• 
  

  (8, -2)

Multiple Choice

Which figure represents a reflection of this quadrilateral over the x-axis?

Multiple Choice

Which of these shows a single reflection?

Multiple Choice

What combination of transformations is shown

• 
  

  reflection, then rotation

• 
  

  translation, then rotation

• 
  

  reflection, then translation

• 
  

  translation, then reflection

Multiple Choice

Which figure shows the triangle below reflected over the x-axis, then reflected over the y-axis? 

Formatives
7th 5/23/1
6th 5/24/4