Transformations

What is a transformation?

• Changing a shape from another shape

• A way of changing the size and position of a shape

• Two shapes that are identical to one another

What is the equation of the mirror line between the two shapes?

• x=-1

• y=-1

• y=-1x

What is the name of transformation that goes from PQR to P'Q'R'

• Reflection

• Translation

• Rotation

What is the name of the transformation that takes shape PQR to P'Q'R'

• Enlargement

• Rotation

• Translation

What is the name of transformation that takes shape ABC to A'B'C'

• Reflection

• Enlargement

• Translation

What is the scale factor of enlargement from triangle A to triangle B?

• 6

• 5/3

• 1.5

What is the transformation from Q to Q'

• Enlargement of scale factor 3 from centre of enlargement (-4,-5)

• Enlargement of scale factor 1/3 from centre of enlargement (-4,-5)

• Enlargement of scale factor 3 from centre of enlargement (-5,-4)

What is meant by similarity?

• Shapes that are exactly identical to one another - side lengths and angles are equal

• One shape that is an enlargement of another

• Two shapes that look alike

What is meant by congruent shapes?

• Shapes that are exactly identical to one another - side lengths and angles are equal.

• One shape that is an enlargement of another.

• Two shapes that look alike.

What is the transformation from T to T'?

• Rotation 90˚ about (0,0)

• Reflection in the line y = -x

• Reflection in the line y = x