8th Gr. Mod 2

Which diagram represents a translation?

• Diagram A

• Diagram B

• Diagram D

• Both Diagram A and B

• Both Diagram B and D

Which diagram represents a rotation of 90^o?

• Diagram A

• Diagram B

• Diagram C

• Diagram D

Melissa drew four diagrams of transformations.

Which diagram represents a reflection

• Diagram A

• Diagram B

• Diagram C

• Diagram D

• Both Diagram A and C

Victoria is told that △A′B′C′ is an image of △ABC.

Victoria uses a protractor to find the measures of some of the angles, and records the results in a table.

What is the measure of ∠A′?

• 39^o

• 63^o

• 78^o

• 90^o

Point P (-4, -3) is translated so that the new coordinates are P’ (-2, 2). Which is the correct rule for this translation?

• left 2 units and down 5 units

• right 2 units and up 5 units

• right 2 units and down 5 units

• left 2 units and up 5 units

Point P (3, 7) is translated so that the new coordinates are P’ (1, 3). Which is the correct rule for this translation?

• left 2 units and down 4 units

• right 2 units and up 4 units

• right 2 units and down 4 units

• left 2 units and up 4 units

Point P (-3, -4) is translated so that the new coordinates are P’ (1, 1). Which is the correct rule for this translation?

• left 4 units and down 5 units

• left 4 units and up 5 units

• right 4 units and down 5 units

• right 4 units and up 5 units

The line segment shown on the coordinate plane undergoes a reflection across the y-axis, then is rotated 90° clockwise about the origin.

What is the length of the resulting line segment?

• 6 units

• 9 units

• 3 units

• 4 units

The line segment shown on the coordinate plane undergoes a reflection across the y-axis.

What is the length of the resulting line segment?

• 4 units

• 8 units

• 12 units

• 6 units

Becky uses a transformation to go from triangle ABC to triangle A'B'C '.

What type of transformation is this?

• Translation

• Reflection

• Rotation

• Dilation