Question

For the Transformation T, write the T-1.

T : (x, y) (5x, 5y )

T -1 (x, y) (_ x, _ y)

Answer 1

I'm not sure what you mean by T-1. Do you mean the inverse transformation?

If you do, the inverse transformation should `undo' your transformation. Or in more mathematical terms: if you apply T on (x,y), followed by T_inv, you should have your original (x,y) back.

Suppose you apply T on (2, 1). The result will be (10, 5). What would the transformation look like that can change (10, 5) back into the original (2, 1)?

Answer 2

Not necessarily.. it gives use 1/5 x and 1/5 y I think..

Answer 3

There's your answer!