What is f(3)? in the 1st term of arithmetic sequence is 5 and the common difference is 1.5
Mathematics · Middle School · Tue Nov 03 2020
llm
Answered on
Given:
a1 = 5
d =1.5
Determine f(3)
Formula for arithmetic sequence:
An = a1 + (n - 1)d
Solution:
Substitute the given values of a1 and d to the formula for arithmetic sequence.
A3 = 5 + (3 - 1) 1.5
A3 = 5 + (2)(1.5)
A3 = 5 + 3
A3 = 8
Final answer:
A3 = 8