Math Problem Statement

Write the first six terms of the sequence a₁ = 0, aₙ = aₙ₋₁ + 2. Graph the sequence.

Solution

To find the first six terms of the sequence defined by a1=0a_1 = 0 and an=an1+2a_n = a_{n-1} + 2, we can calculate each term step-by-step:

  1. Given: a1=0a_1 = 0
  2. Recurrence Relation: an=an1+2a_n = a_{n-1} + 2

Let's compute the terms one by one:

  • a1=0a_1 = 0
  • a2=a1+2=0+2=2a_2 = a_1 + 2 = 0 + 2 = 2
  • a3=a2+2=2+2=4a_3 = a_2 + 2 = 2 + 2 = 4
  • a4=a3+2=4+2=6a_4 = a_3 + 2 = 4 + 2 = 6
  • a5=a4+2=6+2=8a_5 = a_4 + 2 = 6 + 2 = 8
  • a6=a5+2=8+2=10a_6 = a_5 + 2 = 8 + 2 = 10

First six terms: 0,2,4,6,8,100, 2, 4, 6, 8, 10

To graph this sequence, plot each term’s position nn on the x-axis and the value ana_n on the y-axis. The graph would show a linear pattern where each point is 2 units higher than the previous, indicating a steady increase.

Would you like a graph generated for this sequence?


Here are some related questions to expand on this concept:

  1. What would the next term (a7a_7) in this sequence be?
  2. How does this arithmetic sequence differ from a geometric sequence?
  3. How can you find the general formula for the nn-th term of this sequence?
  4. What would happen to the sequence if a1a_1 was changed to a different value?
  5. How could this sequence be represented as a function of nn?

Tip: For arithmetic sequences, each term is generated by adding a constant difference to the previous term.

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Math Problem Analysis

Mathematical Concepts

Sequences
Arithmetic Sequences
Recurrence Relations

Formulas

aₙ = aₙ₋₁ + d, where d is the common difference

Theorems

Arithmetic Sequence Theorem

Suitable Grade Level

Grades 9-10