an = n^2 - an-1
a5 = 14.25
a5 = 5^2 - a4
14.25 =25 -a4
subtract 25 from each side
-10.75 = -a4
a4 = 10.75
a4 = 4^2 - a3
10.75 = 16 -a3
subtract 16 from each side
-5.25 =-a3
a3 =5.25
a3 = 3^2 -a2
5.25 =9-a2
subtract 9 from each side
-3.75 = -a2
3.75 =a2
a2 = 2^2 -a1
3.75 =4-a1
subtract 4 from each side
-.25 =-a1
.25 =a1
a1=.25
a2=3.75
a3=5.25
Choice 2