Maths help transformationWatch
Can someone explain why iii) is f(2x)
I thought it would be f(1/2 x)
As that would be a stretch by scale factor 2 in the x direction and like twice as quick
Your transformation means that the signal finishes at t=2c now rather than t=c/2 which is what you want.
easy to check that f(1/2 * 2c) = f(c) = 0 so indeed your transformation makes this signal twice as long.
- Study Helper