Each term in the sequence below is two less than 1 ⁄ 2 the previous term. What term of the sequence will be the first term to be a negative number?

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Continue the sequence; 28.5 is the fourth term of the sequence. The fifth term is ( 28.5 ⁄ 2 ) – 2 = 14.25 – 2 = 12.25. The sixth term is ( 12.25 ⁄ 2 ) – 2 = 6.125 – 2 = 4.125, the seventh term is ( 4.125 ⁄ 2 ) – 2 = 2.0625 – 2 = 0.0625. Half of this number minus two will yield a negative value, so the eighth term of the sequence is the first term of the sequence that is a negative number.

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