In this situation you will need to do 8 divided by 25 which will give the answer 0.32.
A(n)=a(1)+d(n-1), d=a(16)-a(15)=-5-(-53)=48
a(15)=a(1)+d*(15-1),
-53=a(1)+48*(15-1),
a(1)=-53-48*14= -725
a(n)=-725+48(n-1)
D
Remember starts at zero slope is up 4 right 1
Y= 4/1x+0
Y=4x
