Each semiannual payment is (1/2)*.0545*$1000 = $27.25. There are 2*30 = 60 such payments in 30 years. After 6 payments, there will be 54 left.
a) The value of Tristan's bond is $1238.08
b) The value of Tristan's bond is $926.91
Range is {-2}
Domain is (-infinity,infinity)