In questions 1-4, let t = time in years and y = the value at time t or y = the size of the population at time t. In questions 5-8, let t = time in years and y = the value a...In questions 1-4, let t = time in years and y = the value at time t or y = the size of the population at time t. In questions 5-8, let t = time in years and y = the value at time t or y = the size of the population at time t. Sketch the graph of the function and mark the coordinates of the y-intercept. The value of the system is depreciating and decreases at the continuous rate of 20% per year.