QUESTION 24
The explicit formula is given as:
[tex]a_n = 4 - 6(n - 1)[/tex]
Comparing to the formula:
[tex]a_n = a_1 + d(n - 1)[/tex]
The common difference is d=-6.
The first term is
[tex]a_1=4[/tex]
The recursive formula is given by
[tex]a_n=a_{n-1}+d[/tex]
Hence the recursive formula is:
[tex]a_n=a_{n-1} - 6 \: \: where \: \: a_1=4[/tex]
The correct answer is C
QUESTION 25
The given sequence has formula,
A(n)=5+(n-1)(6)
We can rewrite this as:
A(n)=5+6(n-1)
This implies that, the first term is
[tex]a_1 = 5[/tex]
and the common difference is d=6
We can rewrite this formula recursively as
[tex]a_n=a_{n-1}+d[/tex]
[tex]a_n=a_{n-1}+6 \: \: where \: \: a_1=5[/tex]
The correct choices are:
C and D
