Question

Write a recursive formula for the sequence 7, 4, 1, –2, –5, .... Then find the next term. (1 point)
an = an–1 – 3, where a1 = –8; 7
an = an–1 – 3, where a1 = 7; –8
an = an–1 + 3, where a1 = –3; 22
an = an–1 + 3, where a1 = 7; –8

Answer 1

whats the first term of the sequence?

Answer 2

@amistre64 7

Answer 3

then that narrows it down to two options right?

what more can we gather from it?

Answer 4

are the terms in the sequence getting bigger or smaller?

Answer 5

Smaller

Answer 6

then that should help us pinpoint a solution: we need it to start at 7 and have a next value smaller than -5

Answer 7

lol, you edited that -3 to a -8 didnt you

Answer 8

huh ?

Answer 9

im sure option B gave us 7;-3 when i first read it. but in any case

we are still starting at 7, and getting progressively smaller each time ... meaning we are subtracting from the previous term

Answer 10

so 7 - 4 , 4 - 1 , etc ?

Answer 11

lets start at 7

7

the next terms is 7 - 3 right? 4

the next term is 4 - 3 right? 1

the next term is 1 - 3 right? -2

etc ....

Answer 12

So The Answer Is B

Answer 13

these old eyes of mine can be tricky, but it does appear the B matches the setup correctly

Answer 14

Aw Its Ok ! :) Thank You For Walking Me Through It !

Answer 15

good luck ;)