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Pearson Geometry Common Core, 2011

PG

Pearson Geometry Common Core, 2011 View details

Chapter Test

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Exercise 12 Page 607

Which transformations are in the composition?

Rotation

Practice makes perfect

We are given a composition of reflections.

R_(y=x) ∘ R_(y= - x) ⇕ R_(y= x)( R_(y= - x) ) Notice that the lines of symmetry, y= x and y= - x, are intersecting. Therefore, a composition of reflections across two intersecting lines is a rotation.