9514 140 393
Answer:
f(x) = 19.8x +1080.2
Step-by-step explanation:
The given values form an arithmetic sequence with first term (a1) = 1100 and common difference (d) = (1119.80-1100) = 19.80.
The generic term of an arithmetic sequence is ...
an = a1 +d(n -1)
an = 1100 +19.8(n -1) = 1080.2 +19.8n
Expressed as a function of x, this is ...
f(x) = 19.8x +1080.2
