Ask Question
9 May, 04:55

Consider the sequence - 8, - 4, 0, 4, 8, 12, ellipsis. Select True or False for each statement. A recursive rule for the sequence is f (1) = - 8; f (n) = - 4 (n - 1) for all n ≥ 2. A True B False An explicit rule for the sequence is f (n) = - 8 + 4 (n - 1). A True B False The tenth term is 28.

+2
Answers (1)
  1. 9 May, 05:21
    0
    A recursive rule for the sequence is f (1) = - 8; f (n) = - 4 (n - 1) for all n ≥ 2 is "FALSE"

    An explicit rule for the sequence is f (n) = - 8 + 4 (n - 1) is "TRUE"

    The tenth term is 28 is "TRUE"

    Step-by-step explanation:

    Statement (1)

    While the first part [f (1) = - 8] is TRUE, the second part [f (n) = - 4 (n - 1) for all n ≥ 2] would only be true if the sequence ends at the second term.

    Check: Since the fifth term of the sequence is 8, then f (5) = 8

    From the statement,

    f (5) = - 4 (5 - 1)

    f (5) = - 4 * 4 = - 16

    :. f (5) ≠ 8

    Statement (2)

    f (n) = - 8 + 4 (n - 1) is TRUE

    Check: The fifth term of the sequence is 8 [f (5) = 8]

    From the statement,

    f (5) = - 8 + 4 (5 - 1)

    f (5) = - 8 + 4 (4)

    f (5) = - 8 + 16 = 8

    :. f (5) = 8

    Statement (3)

    f (10) = 28 is TRUE

    Since the explicit rule is TRUE, use to confirm if f (10) = 28:

    f (10) = - 8 + 4 (10 - 1)

    f (10) = - 8 + 4 (9)

    f (10) = - 8 + 36

    f (10) = 28

    :. f (10) = 28
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Consider the sequence - 8, - 4, 0, 4, 8, 12, ellipsis. Select True or False for each statement. A recursive rule for the sequence is f (1) ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers