Question

Considering figure 3 above, is the following figure true for y [n] = x [n/2]?

(a) True

(b) False

This question was addressed to me in an interview for job.

I'd like to ask this question from Basic Operations on Signals in chapter Signals and Systems Basics of Signals and Systems

Answer 1

The correct choice is (b) False

To explain I would say: X [n/2] is an example for time scaling by factor ½ and it will be a stretched signal. The discrete time signal should extend from -10 to 10.