-30, 10*4=40 so you do 9-40+1 which is equal to -30
3 because the middle of 2 and 4 is three so three is the midpoint
X = 1 and y = 4 , if you need to show work lemme know i will show you how i got the answer.
Replacing 9 for the nth term of the sequence we get 9^2 + 1 = 82, Therefore the 9th term is = 82
