The depreciating value of a semi-truck can be modeled by y = ao(0.87)x, where y is the remaining value of the semi, x is the time in years, and it depreciates at 13% per year. an exponential function comes down from the positive infinity and passes through the points zero comma eighty-seven thousand. the graph is approaching the x-axis. what is the value of the truck initially, ao, and how would the graph change if the initial value was only $67,000? $90,000, and the graph would have a y-intercept at 20,000 $87,000, and the graph would have a y-intercept at 67,000 $87,000, and the graph would fall at a slower rate to the right $87,000, and the graph would fall at a faster rate to the right