You have been provided with the following information zero coupon bonds with $1000 face value.

Maturity - semi -annual periods	semi-annual spot rates
1	4.25
2	4.15
3	3.95
4	3.70
5	3.50
6	3.25
7	3.05
8	2.90

Compute the forward interest rates.

Graph the yield curve.

Explain the factors that account for the shape of the curve.