Answer:
an = .5n +1.2
Step-by-step explanation:
The formula for an arithmetic sequence is given by
an =a1 + d(n-1) where a1 is the first term and d is the common difference
an = 1.7 + .5 (n-1)
Distribute
an = 1.7 + .5n - .5
Combine like terms
an = .5n +1.2
