Topic 1.2 An - 5. The graph of y = f(x) is given. Estimate the instantaneous rate of change of f at x = 1. 6. Let f(x) = In(x - 3) . Which is greater: the instantaneous rate of change of f at a = 4 or the instantaneous rate of change of f at x = 10? Use the graph of f to justify your answer. 7. The weight of a baby duck, W(t) , t days after its birth can be modeled by the function W(t) = 100 - 80e-0.2t , where W.(t) is in grams. Find the average rate of change in the baby duck's weight over its first month of life (Assume the month has 31 days). Round to the nearest thousandth.u all again. I have been summoned to a profe- . and working on lesson plans an .. Period 8. The function g has the property that for any values a and b in the domain, where a