Asequence is defined by the formula f(n+1)=f(n)-3. if f(4)=22, what is f(1)?

f(1) = 31

Step-by-step explanation:

since  f(n+1) -f(n) = -3

this sequence is arithmetic when the common diff is d= -3

the general term is :

f(n) = f(1) +(n-1)d

put n = 4

f(4) = f(1)+(4-1)(-3)

22 = f(1) - 9

f(1) = 31

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72