WRITE a rule for the sequence.
5,-4,-13,-22......
i need help to find the answer plzzzz
start with five and add -9 repeatedly
leeme se
down 9 down 9 down 9
a a+1r a+2r a+3r ..... a + (n-1)r
if a= 5 , r = -9
oh, the books use d, not r
r is for your next crisis.
Anyway
https://www.mathsisfun.com/algebra/sequences-sums-arithmetic.html