Discount rate 15% a) Use NPV function to compute the net present value for the project to the left. b) Use Data Table to compute the net present value of the project for discount rate of 0%, 4%, 8%,..., 48%. Graph the results and estimate the project's internal rate of return. c) Use the IRR function to compute the internal rate of return of the project. Year 0 1 2 3 4 5 Cash flow -600 100 200 300 400 500