I'm unsure how to sketch a tri signal with horizontal shift.
Eg , let's say we want to sketch tri((t-4)/4). Can I reduce it to tri( (t/4) - 1 )? This would mean sketching a tri(t/4) signal and shifting it to the right by 1. Or should it be a tri(t/4) signal shifted to the right by 4?
I've found out on wikipedia that the rect signal is defined as rect((X-Y)/T) where you shift the center of the signal by varying Y. But I'm not sure if sketching tri applies the same concept.