A stock is expected to pay a year-end dividend, D1, of $0.75 per share. The required rate of return is rs = 10.5%, and the expected constant growth rate is g = 6.4%. Show your work in all calculations.Using the Gordon model (see equation 9-2), determine the stock's current price, P_0.Assume that the expected constant growth rate, g, is now a negative 5.0% (-5.0%). Can the Gordon model be used in this case to determine the stocks current price? If so, what is the price? If not, why not? Now assume that the expected constant growth rate, g, is 12.0%. Can the Gordon model be used in this case to determine the stocks current price? If so, what is the price? If not, why not?