Answer:
(0.5,0)
Step-by-step explanation:
Input the equation into a graphing calculator
So firstly, square root 9a^2 and 49: 
Next, combine like terms, and your answer will be
, or the third option.
' n ' the 'n'th term
1 4
2 2
3 0
4 -2 .
In general, the 'n'th term of the sequence is A(n) = 6 - 2n .
I believe it is the second one hope that helped