Question

Considering the discrete signal x[k]=0.7k+k and a continuous time signal g(t)=tcost(t)

1.1. Plot the signal x[k]. (u[k+4]−u[k−5]) (show all steps)

Answer 1

To plot the signal x[k]=0.7k+k, substitute values of k into the equation and calculate the corresponding values of x[k]. Plot these values on a graph.

Step-by-step explanation:

To plot the signal x[k] = 0.7k + k, we need to substitute values of k into the equation and calculate the corresponding values of x[k]. Let's take a range from k = -5 to k = 4.

For k = -5, x[-5] = 0.7(-5) + (-5) = -5.5

Similarly, for k = -4, x[-4] = 0.7(-4) + (-4) = -6.8

Continuing this process, we get the values of x[k] for each k in the range. Finally, we can plot these values on a graph, with k on the x-axis and x[k] on the y-axis.