Question

Arithmetic??????????????????

Answer 1

This is true.  An arithmetic sequence is one that either goes up or goes down by the same number every time.  This equation that they gave you is linear, therefore, it will always go up or down by the same amount every time.  Not so with other types of functions, but always with linear.

Answer 2

Hi,
F(a)=6a-8
F(a+1)=6(a+1)-8=6a+6-8=6a-8+6=F(a)+6F(a+2)=F((a+1)+1)=F(a+1)+6=F(a)+6+6=F(a)+2*6...Answser : True.