Question

Write the first term and the common difference of the arithmetic
sequence whose algebraic expression is 3n+5

Answer 1

sorry I don't know the answer

Answer 2

Answer:

algebraic expression=3n+5

for n=1 , it's value 3.1+5=3+5=8

for n=2, it's value 3.2+5=6+5=11

for n=3, it's value 3.3+5=9+5=14

so 1st term =8

common difference=11-8=3