Multiple choice

Which of the following arithmetic sequences follows the function $5n - 4$, where $n$ is the number of terms?

  1. $1, 6, 11, 10$
  2. $1, 6, 1, 16$
  3. $1, 6, 11, 16$
  4. $1, -6, 11, 16$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

For n=1, 5(1)-4=1. For n=2, 5(2)-4=6. For n=3, 5(3)-4=11. For n=4, 5(4)-4=16. The sequence is 1, 6, 11, 16.

AI explanation

To find the arithmetic sequence for the function 5n - 4, substitute the term positions n = 1, 2, 3, and 4 into the equation. For the first term, 5(1) - 4 = 1; for the second term, 5(2) - 4 = 6; for the third term, 5(3) - 4 = 11; and for the fourth term, 5(4) - 4 = 16. This generates the exact sequence 1, 6, 11, 16.

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