QUESTION 9 For the given sequence select a closed formula and recurrence relation with the initial condition that general -9, -4, 1, 6, 11, 16, ... Da=a+5, a=-4 -1 Da =a1-9, a=1 a =9n-5, n0 a =5n-9, n0 a =5n-9, n1 a =a +5, a = -9