Which of the following is the equivalent representation of the denominator of the system function of a general IIR filter?

$\prod_{k=1}^N (1+p_k z^{-1})$

$\prod_{k=1}^N (1+p_k z^{-k})$

$\prod_{k=1}^N (1-p_k z^{-k})$

$\prod_{k=1}^N (1-p_k z^{-1})$

Which of the following is the equivalent representation of the denomi

1.	Which of the following is the equivalent representation of the denominator of the system function of a general IIR filter?
A.	$\prod_{k=1}^N (1+p_k z^{-1})$
B.	$\prod_{k=1}^N (1+p_k z^{-k})$
C.	$\prod_{k=1}^N (1-p_k z^{-k})$
D.	$\prod_{k=1}^N (1-p_k z^{-1})$
Answer» E.

1.	Which of the following is the equivalent representation of the denominator of the system function of a general IIR filter?
A.	\(\prod_{k=1}^N (1+p_k z^{-1})\)
B.	\(\prod_{k=1}^N (1+p_k z^{-k})\)
C.	\(\prod_{k=1}^N (1-p_k z^{-k})\)
D.	\(\prod_{k=1}^N (1-p_k z^{-1})\)
Answer» E.