In a hypothetical economy, no investment projects are undertaken when the real interest rate is 18 percent or above, 10 projects worth $1 million each are undertaken when the real interest rate is 15 percent, and 10 more projects worth $1 million each are undertaken every time the real interest rate falls by 3 percent until it reaches a value of zero. a. Draw a graph showing the investment demand curve. Plot 7 points in total using the line tool (investment demand curve) given below. Investment Demand Curve DOK 21 Tools 18 investment de 15 ances 12 Real Rate of Return and Interest (%) 3 0 10 20 30 40 50 60 70 Investment (2017 $ million)