In this question, each of the letters

I

R

S

and

T

represents a different transformation.

We can do one transformation followed by another. For example, $R S$ means "do $R$ , then $S$ ".

We can also undo transformations. For example, $R^{- 1}$ means "do the inverse (opposite) of $R$ ".

Here are the effects of some transformations on a shape. Can you describe the transformations
$I$ , $R$ , $S$ and $T$ ?

What single transformation has the same effect as

R S T I R^{- 1} S^{- 1} T^{- 1} I^{- 1}

This problem is the first of three related problems.
The follow-up problems are Combining Transformations and Simplifying Transformations .