Consider a Keynesian Consumption Function with Desired Consumption Equal to 0.9

Essay

Consider a Keynesian consumption function with desired consumption equal to 0.9 Y,where Y is income.Government purchases are $1000,net exports are zero,and desired investment varies with real interest rate according to the following schedule:
$$\begin{array} { c c } r & I d \\5 \% & \$ 3000 \\4 \% & 3500 \\3 \% & 4000 \\2 \% & 4500\end{array}$$
Assume the interest rate adjusts so that the economy gets to equilibrium.Equilibrium output at full employment is $50,000.Find the values of consumption,investment,and the real interest rate at full-employment equilibrium.