(12 Points) 1. A Fine Start to LTI Signals and Systems Consider the system with a scalar gain k given by: yi[n] = kx[n] XXXXXXXXXXA. Is this system linear? Please briefly explain. B. Consider a new...

(12 Points) 1. A Fine Start to LTI Signals and Systems Consider the system with a scalar gain k given by: yi[n] = kx[n] + 3004 A. Is this system linear? Please briefly explain. B. Consider a new system consisting of the difference between the responses to two versions of the aforementioned system z[n] = y1[n] - y2[n] Is this second system, z[n], linear? Please briefly explain.